Solve the system of linear equations by graphing y = -4x + 2 ; y = -x - 1
What is the solution?
Answers
Answer:
Step-by-step explanation:
Easiest way would be to substitute points into the given equations and plot your answers.
E.g. if you substitute points into your first equation you get:
If x = 0, y = -4(0) +2 = 2
If x = 1, y = -4(1) +2 = -2
If x = -1, y = -4(-1) +2 = 6
Etc.
Second equation:
If x = 0, y= -(0) -1 = -1
If x = 1, y = -1 -1 = -2
If x = -1, y = -(-1) -1 = 0
Pretty much just plug in values for x into the equations to find y.
Once you have your points, draw a line :)
Where the two lines intercept would be the solution.
Related Questions
Please help me math
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Calculate the area of the triangle: A =
Answers
Answer:
27
Step-by-step explanation:
The area of the triangle is 30.9 square units.
We have,
From the figure,
Height = Distance between (-2, 6) and (-2, 0).
Base = Distance between (-2, 0) and (7, -5).
To find the distance between two points in a Cartesian coordinate system, use the distance formula:
Distance = [tex]\sqrt{((x_2 - x_1)^2 + (y_2 - y_1)^2)[/tex]
Height:
Distance = √((-2 - (-2))² + (0 - 6)²)
Distance = √(0² + (-6)²)
Distance = √(0 + 36)
Distance = √36
Distance = 6
Base:
Distance = √((7 - (-2))² + (-5 - 0)²)
Distance = √((7 + 2)² + (-5)²)
Distance = √(9² + (-5)²)
Distance = √(81 + 25)
Distance = √106
Distance ≈ 10.3
Now,
The area of the triangle.
= 1/2 x base x height
= 1/2 x 10.3 x 6
= 10.3 x 3
= 30.9 square units
Thus,
The area of the triangle is 30.9 square units.
Learn more about triangles here:
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1. Lee Johnson wants to join Planet Fitness. It cost $15 starting fee, and $11 per session. Lee has
paid $400. How many sessions can he attend?
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The question to this is that it says jamie draws figure RSTU in the coordinate plane, as shown. Then he reflects Figure RSTU across the x-axis to form figure R’S’T’U’. I need the answer plzz help me
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Answer:
R’ = (-6, 3)
S’ = (-3, 3)
T’ = (-3, 7)
U’ = (-6, 6)
Step-by-step explanation: Reflection across the x-axis.
Hope this helps!
Identify if each given value is a zero of the equation 0=18c3−50c
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[tex]18 {c}^{3} - 50c = 0 [/tex]
[tex]2c(9 {c}^{2} - 25) = 0 [/tex]
[tex]2c(3c + 5)(3c - 5) = 0[/tex]
_________________________________
[tex]2c = 0[/tex]
[tex]c = 0[/tex]
_________________________________
[tex]3c + 5 = 0[/tex]
[tex]c = - \frac{5}{3} \\ [/tex]
_________________________________
[tex]3c - 5 = 0[/tex]
[tex]c = \frac{5}{3} \\ [/tex]
Done...
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The only zero of the equation 0=18c³−50c is c = 0, as it makes the equation true when substituted.
value is a zero of the equation 0 = 18c³ - 50c,
putting in the value for c
If c = 0:
0 = 18(0)³ - 50(0)
0 = 0 - 0
0 = 0 (True)
If c = 2:
0 = 18(2)³ - 50(2)
0 = 18(8) - 100
0 = 144 - 100
0 = 44 (False)
If c = -1:
0 = 18(-1)³ - 50(-1)
0 = 18(-1) + 50
0 = -18 + 50
0 = 32 (False)
only c = 0 is a zero of the equation 0 = 18c³ - 50c.
The equation 0 = 18c³ - 50c has only one zero, which is c = 0, as it satisfies the equation when substituted.
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How many significant figures are in the number 0.00282
Answers
Step-by-step explanation:
has 3 (sig figs) and 5 decimals. see the additional (+) and subtraction (-) round by the last number of decimals or use scientific no ( e.g. 1.000 x 10^3 or 1.000e3)
Select the correct answer.
Which equation is equivalent to the given equation?
–8(x + 13) = 2(1 – 7) + 4x
A -80 + 13 = -2x + 14
-8x + 13 = 6x - 7
-8x - 104 = 60 – 14
-8x - 104 = -2.3 + 14
Answers
Answer:
C. -8x-104=6x-14
Step-by-step explanation:
–8(x + 13) = 2(x – 7) + 4x
-8x-104=2x-14+4x
-8x-104=6x-14
Carolyn is using the table to find 360% of 15. What values do X and Y represent in her table? Percent Total 100% 100% 100% 20% 20% 20% 360% X X X Y Y Y X = 2.5; Y = 2.5 X = 5; Y = 0.75 X = 15; Y = 3 X = 15; Y = 5
Answers
Answer: c
Step-by-step explanation:
Based on the percent breakdown of 360%.
100% 100% 100% 20%20%20%
15. 15. 15. 3. 3. 3.
100% is all of it, so 15. This is x.
20% of it would be calculated as 0.2 x 15 or 3. This is y.
Answer:
c
Step-by-step explanation:
The perimeter, P, of a square whose side length is n.
Answers
Answer: p = 4n
Step-by-step explanation:
To find the perimeter of a shape, you need to add the length of the 4 sides. A square's 4 sides are equal. Therefore, you add n+n+n+n which is the same as 4n.
Answer:
P = n4
Step-by-step explanation:
in order to find the perimeter of an object you must add up all the sides. since we are dealing with a square all the sides are n. so in conclusion, 4 times n would you get you the perimeter, P.
Can somebody pls answer these three questions ASAPPPP!!!!
Answers
Answer:
1) x = 3/2 2) x = 6 3) x = 3
Step-by-step explanation:
For Number 1:
4(x+8)−4=34
Step 1: Simplify both sides of the equation.
4(x+8)−4=34
(4)(x)+(4)(8)+−4=34(Distribute)
4x+32+−4=34
(4x)+(32+−4)=34(Combine Like Terms)
4x+28=34
Step 2: Subtract 28 from both sides.
4x=6
Step 3: Divide both sides by 4.
4x/4 = 6/4
x = 3/2
For Number 2:
2/3(9+x)=−5(4−x)
Step 1: Simplify both sides of the equation.
6 + 2/3x = −20+5x
Step 2: Subtract 5x from both sides.
−13 /3 x+6=−20
Step 3: Subtract 6 from both sides.
-13/3x = -26
Step 4: Multiply both sides by 3/(-13)
x = 6
For Number 3:
−3(x+4)+15=6−4x
Step 1: Simplify both sides of the equation.
−3(x+4)+15=6−4x
(−3)(x)+(−3)(4)+15=6+−4x(Distribute)
−3x+−12+15=6+−4x
(−3x)+(−12+15)=−4x+6(Combine Like Terms)
−3x+3=−4x+6
−3x+3=−4x+6
Step 2: Add 4x to both sides.
−3x+3+4x=−4x+6+4x
x+3=6
Step 3: Subtract 3 from both sides.
x+3−3=6−3
x = 3
There are 5 times asmny yellow labs as terriers in the dog park. If there are a toal of 24 dogs,how many dogs are terriers? Complete the equation and solve.
24=
Answers
Answer:
4
Step-by-step explanation:
If there are 5 times as many the. terriers would make the 6th part.
So, 24÷6= 4
There are 4 terriers and 20 labs
mike is 46 yrs old. He is 4 yrs older than 3 times his son Jared's age. Find Jared's age
Answers
Answer:
Jared is 14 years old
Step-by-step explanation:
A passenger car will go 372 miles on 15.5 gallons of gas in city driving. What is the rate in miles per gallon?
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Answer:
24 miles per gallon
Step-by-step explanation:
If -7 is added to a number, the result is 12. What
is the number?
A. -5
B. 5
C. 12
D. 19
Answers
Answer:
D. 19
Step-by-step explanation:
-7+19=12
Answer:
D. 19
Step-by-step explanation:
In 9.3 x 10-8 the exponent is a negative number. Which of these describes the value of a number in scientific notation that includes a negative exponent
Answers
Answer:
0.000000093
Step-by-step explanation:
Theres seven zeros after the decimal
6x +3 = 7x-3
Solve this eqation plss
Answers
Answer:
6
Step-by-step explanation:
Step 1:
6x + 3 = 7x - 3 Equation
Step 2:
3 = x - 3 Subtract 6x on both sides
Step 3:
x = 3 + 3 Add
Answer:
x = 6
Hope This Helps :)
Factor the expression x2-5x+6
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Answer:
x2 + 5 x − 6 using the AC method. ( x − 1 ) ( x + 6 )
If it is wrong I am sorry!
triangles EFG and JKL are congruent then which two segments must be congruent?
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EF = JK
FG = KL
LJ = GE
Here you go.
450,137,879 dived by 4,890 please give me step by step explanation please!!
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Answer:
92052.73599
Step-by-step explanation:450,137,879 divded by 4,890 you'll get 4,890
pls I need help understanding
Answers
Answer:
$206.9
Step-by-step explanation:
chen can ride his bike 3 miles in 15 minutes. How long will it take chen to ride 18 miles
Answers
Answer:
15*6 = 90 minutes (1 hour and 30 minutes)
Step-by-step explanation:
Money that is collecting interest in a bank account doubles in value every 8
years.
When the account was opened, it had 8, or 23 dollars in it. After 32 years, the
account balance has doubled 4 times, increasing by a factor of 24,
It now has a balance of 23. 24. Expressed as a power, how much money, in
dollars, is in the account after 32 years?
A. 24
d
B. 27
C. 212
D. 47
Answers
Answer:
2 to the power of 7
Step-by-step explanation:
add the powers when it is multiplication
if 2m-6=8m them 3m= what
Answers
Answer:
C. -3
Step-by-step explanation:
First, you would subtract 2m on both sides in the first equation, to get 6m = -6. Since you wan to find 3m, just divide -6 by 2 to get -3.
Is it carbohydrate, lipid, protein, or nucleic acid?
PLEASE HELP!!! LAST QUESTION AND IM STUCKK.
Answers
Answer:
nucleic acid
Step-by-step explanation:
Find the slope
Help please
Answers
Answer:
9/2 or 4.5
Step-by-step explanation:
y2-y1/x2-x1+ slope form
You find two points and take the second y and subtract it from the first. Then you do the same with the x and divide the two.
"if A, then B" is the form of a _______statement
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"If A, then B" is the form of a _____ statement.
A. false
B. deductive
C. conditional
D. true
Then I think that the answer is C.
what is 431x18 estameted? please help fast
Answers
Answer:
7758 :)
Step-by-step explanation:
Answer:
9000
Step-by-step explanation:
What are the major elements present in carbohydrates?
C,H,O
C,H,O,N
C,H,O,N,P
C,Fe,Si
Answers
Answer:
i think its C, H, O but i could be wrong
Step-by-step explanation:
Answer: Carbon, Oxygen And Hydrogen
Step-by-step explanation:
Mason prepared 12 kilograms of dough after working 3 hours. How many hours did Mason
work if he prepared 20 kilograms of dough? Solve using unit rates.
Answers
Kelly can type 120 words in 3 minutes. At that rate, how many words can she type in 5 minutes?