Question

Write an equation of the line with the given slope and y-intercept in standard form.
slope: 0.5; y-intercept: 7.5
Is 0.5x + y = 7.5 correct or a start or anything?

Answer 1

y=mx+b where m is slope
If you get y by itself
y=-0.5x+7.5

Answer 2

Thank you but how do I make it standard form? Standard form is
Ax + By = C but I can't remember what a and b are. I think A is the slope and B might be the y intercept?

Answer 3

A and B are any number.

Answer 4

You got the y intercept right. But something is wrong. Can you see it?

Answer 5

Not really sorry. I'm a little confused on standard form.

Answer 6

standard form is Ax+By=C
you are right on that.

Hint:y=mx+b is wrong. where m is SLOPE

Answer 7

In your example for slope intercept form, you have -0.5 for m.

Answer 8

They do not want -0.5 for m right?
They want 0.5

Answer 9

Ya.

Answer 10

Problem says slope: 0.5
slope=m

Answer 11

So let me see your new standard form

Answer 12

I don't understand. I said 0.5x + y = 7.5 above, I think.

Answer 13

I just don't understand how to convert slope intercept to standard. I can't remember it and I've looked at a few websites and it doesn't seem to show me how, just provide practice problems.

Answer 14

0.5x+y=7.5
turns to
y=-0.5x+7.5 if you make y by itself
and y=mx+b
where m is slope
m=-0.5
m=slope

Answer 15

Oh okay I see. I didn't understand what you were going for there. Alright so what would I have to do now?

Answer 16

Make m the right slope.

Answer 17

-0.5x + y = 7.5?

Answer 18

Yes, that is correct.
Nice job.

Answer 19

Alright thank you! So I just need to start the proper way with slope intercept then convert to standard is all?

Answer 20

Yes, slope intercept first then standard.
It makes everything easier at the beginning.

Answer 21

Alright thank you so much!

Answer 22

I think you guy missed the final step. For standard form, all the numbers have to be integers, and according to most sources, the coefficient of x must be positive. So you need to multiply by -2 to get rid of the decimals and make the "a" positive

Answer 23

By -2? Isn't it usually be -1 to keep the numbers the same?

@Shalante ?

Answer 24

If the numbers were integers, yes you'd multiply by -1. But you have decimals. You need to multiply. If they were fractions they'd be