Question

Equation of a line for 1,3 and -3,5

Answer 1

y = -1/2x +7/2

Explanation:

First we need to find the slope

m = (y2-y1)/(x2-x1)

= (5-3)/(-3-1)

= 2 /-4

= -1/2

We can use the slope intercept form

y= mx+b where m is the slope and b is the y intercept

y = -1/2 x+b

Substitute the point int

3 = -1/2 (1) +b

3 = -1/2 +b

Add 1/2 to each side

62 + 1/2 = b

b = 7/2

y = -1/2x +7/2