## flyinglikeabird? 3 years ago Write the equation of a line with slope m = 3 and including point (3, 5) in slope-intercept form.

1. ajprincess

Let the equation of the line be y=mx+c To find c plug in the values y=5, x=3 and m=3 in y=mx+c. Can u do it @flyinglikeabird??

2. flyinglikeabird?

c is -1?

3. flyinglikeabird?

err -4

4. flyinglikeabird?

3x3 = 9 + -4 = 5

5. ajprincess

yup c=-4. So ur equation becomes y=3x-4. Getting it?

6. flyinglikeabird?

I never really understand algebra. It all seems like made up crap. I see what you did, but what is c?

7. ajprincess

c is y-intercept

8. ninab731

Y=mx+b 5=3(3)+b 5=9+b B=4

9. ajprincess

@ninab731 b=-4 5=9+b 5-9=b -4=b

10. flyinglikeabird?

Ahh, okay. It all makes sense how you did it, don't understand why it is that way...

11. ajprincess

y=mx+c is the general slope-intercept form

12. flyinglikeabird?

I get it, just feels like I am missing something. But thanks for your help!

13. ajprincess

yw:) if anythng is nt clear plz ask