Question

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

Answer 1

Equations?...

Answer 2

y = -6x - 15

y = -6x - 20

y = -6x + 15

y = -6x + 20

Answer 3

I've tried to get a grasp on the assessment through flvs i can't really get a good concept though there lesson.

Answer 4

It's: y = -6x - 15

The formula is y = mx + b.
They have given you the slope, which is m = -6 and the points x and y.
Now you just have to plug in the slope and the points in y = mx + b and it should look like this: -3 = -6(-2) + b.
Now find b by solving the equation above and you get -15 :)
And voila, you have everything to make an equation from y = mx + b to y = -6x - 15 :)
...Sorry if I am not too good with explaining :(

Answer 5

Nah it was good. A lot more short, sweet, and to the point then the lesson i read. it's so dang elaborate it's irritating.

Answer 6

thanks

Answer 7

:)

Answer 8

Are you any good with finding perpendicular lines with equations? cause that's the worst one for me.

Answer 9

Haha it's been like almost three years since I touched math but if I look it over/study it then I will be able to solve it. :) What's the questions?

Answer 10

Choose the equation of the line passing through the point (4, -2) and perpendicular to y = x - 7.

y = -3x - 14

y = 3x - 10

y = -3x + 10

y = 3x + 14

Answer 11

oops hold on

Answer 12

]Choose the equation of the line passing through the point (4, -2) and perpendicular to y = 1/3x - 7.

Answer 13

The answer is y = -3x + 10 :)
Okay, so from what I read:
To find the slope m of the equation you are trying to find, you take the given equation y = 1/3x - 7 and take its slope; m = 1/3:
Now the slope of an equations line that is perpendicular is the negative inverse: which makes m = 1/3 to m = -3 (1/3 becomes 3 and positive sign becomes negative, therefore, -3):
Now you have the slope m = -3 and the point (4,-2):
Next you would plug in these values into y = mx + b, which gives you -2 = -3(4) + b
Now you would solve for b and get 10.
Now you have the slope m = -3 and b = 10
now plug them into y = mx + b and get y = -3x + 10 :)
... I hope it was helpful! This is what I understood from what I read :)

Answer 14

Now if you were given an equation in the form of y - y1 = m(x - x1), you would change it to the form y = mx + b and repeat the steps I wrote above :)

Answer 15

oh okay see i think that's what confused me. i kept taking the point slope formula and trying to transition that to slope intercept. And i didn't realize all you had to do with the slope intercept formula is plug in the numbers.I Appreciate you're time.

Answer 16

No problem :) I am here to help haha :)