Question

Write an equation of the line that passes through (2,3) and (4, 7).

A) y = 2x - 1
B) y = 2x + 15
C) y = -2x - 1
D) y = -2x + 15

Answer 1

A) y=2x-1

Explanation:

y-y1 =
`(y2-y1)/(x2-x1)`(x-x1) => y-3 =
`(7-3)/(4-2)`(x-2) => y-3= 2x-4 => y=2x-1