Question

Which equation has a graph perpendicular to the graph of 7x = 14y – 8 ?
y = –2x – 7
y = –x + 4
y = x + 1
y = 2x + 9

Answer 1

Put your equation in y=mx+b form.
Then the slope for the perpendicular equation will be the inverse and with an opposite sign.
So do (1/m)*(-1) and that will be the slope for the perpendicular line.
That should be enough to find the solution.

Answer 2

so y= 1/2x + 4/7

Answer 3

then it would be -2 for slope

Answer 4

Correct!

Answer 5

If there were more than one, you'd have to get the full equation. But as is, you know enough to say which is the correct answer.

Answer 6

yeah true :) thanks

Answer 7

yw