Question

If f(x)=3x+12, find the value of the y-intercept.
PLEASE HELP ME, IM BEGGING YOU.

Answer 1

y=3x+12

Answer 2

After that are you supposed to divide everything by 3?

Answer 3

yes, divide by 3 and then you will have your y.

Answer 4

Ok, so the answer I got was 12, is that correct?

Answer 5

The y-intercept is where the graph of the equation cuts the y-axis.
All points on the y-axis have an x-coordinate of 0.

So,

y =3x+12
y = 3*0 + 12
y = 12 as you stated above.

The coordinates of the y-intercept are (0, 12)

@plzzhelp

Answer 6

also, with any straight line of the form y = mx + b

b is the y-intercept and m is the slope

Answer 7

so no calculation required in this case

Answer 8

Thank you so much!