Question

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

@welshfella , @Miss.SweetiePie , @Michele_Laino

Answer 2

the genaral form of this equation is
y = mx + b

where m = slope and b = where the line cuts the y-axis

Answer 3

so as you see the slope = -6

Answer 4

since you know the slope is -6 you can plug that in

Answer 5

plug in y = -3 and x = -2 into each option and see which one fits

Answer 6

how would I solve that when plugging them in?

Answer 7

lets try the second one

y = -6x - 20

y = -3, x = -2 so we get

left side = -3
right side = -6(-2) - 20 = 12 - 20 = -8

the 2 sides are unequal so it cant be the second equation

Answer 8

you need the left and right side to be -3

Answer 9

Okay, so it can't be B right?

Answer 10

right

so try A

Answer 11

I tried it on paper just like how you did it, and I don't think it is A @welshfella

Answer 12

I got a

Answer 13

I'm not sure @welshfella

Answer 14

a
lhs = -3
rhs = -6(-2) - 15 = 12 - 15 = -3


yea A

Answer 15

Thanks guys!

Answer 16

yw