Answer: y = −4 x − 3
Step-by-step explanation:
First change it into point slope form which is y − 1 = − 4 ⋅ (x + 1 )
The change it from point slope form to slope intercept which is y = −4 x − 3
Answer:
y = - 4x - 3
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 = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 1, 1) and (x₂, y₂ ) = (2, - 11)
m = [tex]\frac{-11-1}{2+1}[/tex] = [tex]\frac{-12}{3}[/tex] = - 4 , then
y = - 4x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (- 1, 1 ), then
1 = 4 + c ⇒ c = 1 - 4 = - 3
y = - 4x - 3 ← equation of line
