Question

What is the slope-intercept form of the function that contains the point (1, –2) and has a slope of –3?
y = ? x + ?

Answer 1

well y=mx+b. Where m is slope and b is y-intercept

Answer 2

so the first question mark is -3?

Answer 3

Yep

Answer 4

So the equation now looks like y=-3x + b

Answer 5

Since we have points of the function we can solve the equation for b

Answer 6

by plugging in x and y then solving can you do that?

Answer 7

so the x equals 1 in that equation?

Answer 8

yup and y = -2. So what is b?

Answer 9

so now it looks like -2=-3+b

Answer 10

after we mulitply -3*1

Answer 11

b=1

Answer 12

yes

Answer 13

thank you very much!

Answer 14

No problem :D