Question

What is the slope of the line through (1, 9) and (–3, 16)? a) −47 b) −252 c) −225 d) −74

Answer 1

slope = -
`(7)/(4)`

Explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (1, 9) and (x₂, y₂ ) = (- 3, 16)

m =
`(16-9)/(-3-1)` =
`(7)/(-4)` = -
`(7)/(4)`