Question

What is an equation of the line that passes through the points (1,3) and (7,-3)

Answer 1

y=-x+4

Explanation:

m=y2-y1 ÷ x2-x1

= -3-3 ÷ 7-1

= -6÷ 6

= -1

y-y1= m( x-x1)

y-3= -1(x- 1)

y-3 = -1x+1

y = -x+1+3

y= -x+4