Question

What’s the slope intercept form? At first I thought it was y=-4/3x+7 but it’s not. Pls help!

Answer 1

Answer:

y = - $\frac{5}{4}$ x + 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (0, 7) and (x₂, y₂ ) = (4, 2) ← 2 points on the line

m = $\frac{2-7}{4-0}$ = $\frac{-5}{4}$ = - $\frac{5}{4}$

The line crosses the y- axis at (0, 7 ) ⇒ c = 7

y = - $\frac{5}{4}$ x + 7 ← equation of line