Question

y= 3+x
What is the y-intercept?

Answer 1

x=0
then
y=...?

Answer 2

oh, three? Right?

Answer 3

y intercept is when the function has a y value of zero
substitute y=0 and we have
0=3+x
x=-3

Answer 4

right!
it's y=3

Answer 5

THANKS!! :)

Answer 6

jm92 - you are talking about x-intercept :))

Answer 7

ok thx for the clarification :]

Answer 8

do either of you know what the slope is then?

Answer 9

just think about it as:
y-intercept = crossing y-axis (means x=0)
x-intercept = crossing x-axis (means y=0)

Answer 10

if we are talking about original:
y= 3+x
the slope is the coefficient in a front of x
which is m= 1 in this case, right?

Answer 11

oh, yes!!! THanks Inik, YOU ROCK!

Answer 12

Good Luck & have fun with math :)))