Which equation represents the line that passes through the points (7, 8) and (3, -4_?
y = x + 1
y = 3x - 13
y = -x + 15
y = -3 + 29

Step-by-step explanation:

(7, 8) and (3, -4)

y2 = -4, y1 = 8, x2 = 3 and x1 = 7

Slope m = {y2-y1}/{x2-x1}

m = {-4 - 8}/{3 - 7}

m = -12/-4

m = 3

And

y - y1 = m(x - x1)

y - 8 = 3(x - 7)

y - 8 = 3x - 21

y = 3x - 21 + 8

y = 3x - 13

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10