Question

PLEASEEEE ANSWERRR FASTTTT!!!!!!!!!!What is the equation of the line whose graph is shown?

A.y=-x

B.y=2x

C.y=x

D.y=2

Answer 1

A

Explanation:

The equation of a line passing through the origin is

y = mx ( m is the slope )

To find m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (1, 1) and (x₂, y₂ ) = (- 1, - 1) ← 2 points on the line

m =
`(-1-1)/(-1-1)` =
`(-2)/(-2)` = 1

y = x ← is the equation of the line → A