Question

Which of the following are equations for the line shown below? check all that apply.

the graphed points: (-2,4) (1,-5)

a. y+5=-3(x-1)
b. y=-3x-2
c. y=-3x-3
d. y-4=-3(x+2)

Answer 1

D) y - 4 = -3 (x + 2)

Explanation:

Use the y2-y1/x2-x1 formula to calculate the slope (3)

We will use the formula y-y1 = m (x-x1)

The value of y1 is 4, the value of m is 3, the value of x1 is 2, now substitute these values into the formula

y - 4 = - 3 (x + 2)