Answer:
x = 6
y = 0
Explanation:
−2x+y=−12;3y−2x=−12
Rewrite equations:
−2x+y=−12;−2x+3y=−12
Solve −2x+y=−12 for y
−2x+y=−12
−2x+y+2x=−12+2x(Add 2x to both sides)
y=2x−12
Substitute 2x−12 for y in −2x+3y=−12
−2x+3y=−12
−2x+3(2x−12)=−12
4x−36=−12 (Simplify both sides of the equation)
4x−36+36=−12+36 (Add 36 to both sides)
4x=24
Divide both sides by 4
4x / 4 = 24 / 4
x = 6
Substitute 6 for x in y=2x−12
y=2x−12
y=(2)(6)−12
y=0 (Simplify both sides of the equation)
Answer:
C. y = 4x − 1
Step-by-step explanation:
x y
1 3
2 7
3 11
We can find the slope
m = (y2-y1)/(x2-x1)
= (11-7)/(3-2)
= 4/1
The slope is 4
The only equation with a slope of 4 is
y = 4x − 1
Check a point
(1,3)
y = (4)*1 -1
y=3
Checks so this works
