Question

What is the slope of a line perpendicular to the line whose equation is 3x-6y=90. Fully simplify your answer.

Answer 1

slope= 1/2

Explanation:

3x-6y=90

rewrite the equation into slope intercept form

y=1/2x-15

subtracting is the same as adding the opposites

y=1/2x+(-15)

since the equation is written in slope intercept form, y=mx+b, identify the slope of the line as the coefficient next to the variable x

y=1/2x+(-15), m=1/2

identify the y intercept of the lines as the constant term

y=1/2x+(-15),m(slope)=1/2,b=-15

Answer 2

the slope is 0.5 or 1/2

Explanation:

3x - 6y = 90

-6y = -3x + 90

y = 0.5x + 90