Question

Can anyone help with Precalculus?

Answer 1

Find an equation in slope-intercept form of the line that has slope 5 and passes through point A (4,-5)

Y=5x+25
Y=-5x-25
Y=25x-5
Y=5x-25

Answer 2

so lets try A

Answer 3

put 4 for x and -5 for y
\(-5= 5*4 +25\)
tell me if it's tru

Answer 4

Mehek, if slope is 5, then it is just 5x (not -5x).
For any slope m it would be mx

Answer 5

true*

Answer 6

y=mx+b
-5=(5)4+b
-5=20+b
b=-25

y=5x-25

Answer 7

I don't get why is it precalculus though, if it is algebra

Answer 8

it is Algebra

Answer 9

@monkey* have you tried solving it?

Answer 10

Most of my problems are like this. And yes @mehek14. So I would use y=mx+b, right?

Answer 11

correct

Answer 12

so plug in the ordered pairs and see which equation goes with it

Answer 13

Okay, one minute.

Answer 14

It would be y=5x-25?

Answer 15

correct \(\ddot\smile\)

Answer 16

Thank you! Would you mind helping with a few more?

Answer 17

sure

Answer 18

Okay. Write an equation in standard form the passes through points (-4,10) and (0,-5).

Answer 19

Start me off? I'll figure it out from there.