Question

Choose the slope-intercept equation of the line that passes through the point (6, -6) and is perpendicular to y = 3x - 6.

y =1/3 x - 8

y = -3x + 12

y = 3x - 24

y = -1/3x - 4

Answer 1

How is an equation perpendicular to another equation?

Answer 2

dude. idk

Answer 3

Okay, can you identify the slope of your equation?

Answer 4

no... I suck

Answer 5

Do you have any idea at all as to how to solve the problem? Just so you know, I can't just give you the answer. I want to guide you to it.

Answer 6

no.. I dont:(

Answer 7

This should help:

http://www.mathopenref.com/coordperpendicular.html

Answer 8

These are already in slope intercept form. Y = mx + b. m is the slope. To find a perpendicular slope, you go: - 1/m. Basically, you flip the slope fraction and add a minus sign. To make it go through your points, you'll want to substitute for y and x. Then change the b to what you need it to be to make the equation true. It's easier than I said because you have a multiple choice here.

Answer 9

is it B? @Nanoman

Answer 10

Sorry, my computer froze. Let me check.

Answer 11

No, it's not be. Your equation has 3x. Remember, 3 = 3/1. So, flip that fraction, and add a negative sign.

Answer 12

*b lol

Answer 13

so is it C?

Answer 14

Wait a second, I need to see your reasoning. What do you get when you flip the number 3, and add a negative sign?

Answer 15

you said to flip it to a negative so instead of + I changed it to - and got c?

Answer 16

What was the fraction you got?

Answer 17

Ohhh....

Answer 18

im not sure:(

Answer 19

I'm sorry, I wasn't clear enough. When I say flip a fraction, I mean exchange its denominator and numerator. Example 2/3 --->3/2 Likewise, 6/7 --> 7/6. You flip the fraction, and ALSO add a negative.

Answer 20

so is it C? I'm pretty sure it is right?

Answer 21

?