Question

What is an equation for the line that passes through points (-1,-4) and (1,4) ? Write the equation in slope intercept form.

Answer 1

Answer:y=4x

Step-by-step explanation:

Coordinates(x1,y1)=(-1,-4)

Coordinates x2,y2=1,4

Slope intercept formula

Y=MX+b

Where m =slope of line

b=y intersept

M=4-(-4)/1-(-1)=8/2=4

Y=4x+b

b=4x-y

y=4x+4x-y

2y=8x

y=4x

y=MX+b

y=4x+b

4x=4x+b

4x-4x=b

b=0

y=MX+b

M=4,b=0

Y=4x