Question

What is the equation of the line that is perpendicular to y = 2x – 4 and has a y-intercept of –2?

Answer 1

the slope in the given equation is 2. Do you understand that ?

Answer 2

yes, so would i find the negative reciprocal?

Answer 3

yes...because you are looking for a perpendicular line

Answer 4

OK! so the answer should be Y= -1/2x+2?

Answer 5

not quite...you want the y intercept to be -2

Answer 6

ok... so y=-2x-2?

Answer 7

the y intercept is in the b position of y = mx + b.
so your perpendicular equation is y = -1/2 - 2
you got it :)

Answer 8

ok thanks!

Answer 9

YW :) y = -1/2x - 2