Question

Help please.

Choose the equation below that represents the line passing through the point (-2, -3) with a slope of -6.

y = -6x - 15

y = -6x - 20

y = -6x + 15

y = -6x + 20

Answer 1

the equation will prove true for the given point, since they all of -6x in common.

Answer 2

if we generalize it:

y = m(x-a) + b

y = mx -ma + b

so the constant at the end is simply equal to -ma+b

Answer 3

I just have to find out what "b" is, and if it is positive or negative right?

Answer 4

pretty much yeah. if you dont recall the point slope format, then the simplest process is to insert the points x and y values to see what is true

Answer 5

Okay i'm going to try and get the answer Gimme a minute.

Answer 6

for example

y = -6x - 20, (-2,-3)

-3 = -6(-2) - 20

-3 = 18-20

-3 = -2 is not good

Answer 7

i dont see a B option, so im not sure which one you are referinng to.

Answer 8

Crap sorry I meant A. y = -6x - 15
I didn't solve them in the same order as listed.

Answer 9

I think it is A. lol

Answer 10

A is fine :) and to correct my inability to multiply lol

y = -6x - 20, (-2,-3)

-3 = -6(-2) - 20

-3 = 12-20

-3 = -8 is not good

Answer 11

Okay thank you for your help! :)