Question

State the slope and the y-intercept for the graph of each equation.

1. y = x + 9

Answer 1

Take the equation of a line in the form

y = mx + b

where m is the slope and b is the y value of the y-intercept. What do you get for m and b?

Answer 2

m = 0?
and the b is 9 right?

Answer 3

b is 9, yeah

Answer 4

but if m were 0 then you would have

0x = 0

Answer 5

you can look at x as 1x

Answer 6

oh. I don't remember how to get the m

Answer 7

would b be (0,9) ? because we have to graph the points too

Answer 8

yeah--for the y-intercept x will always be 0. good job

Answer 9

m comes out to 1 because, substituting back into y=mx+b,

y = 1*x + 9

gives

y= x + 9

which is what we wanted

Answer 10

so the y-intercept is (0, 9), and the slope is 1

Answer 11

yay thank you! so m = ( 0, 1)

Answer 12

I mean 1, 0

Answer 13

m is just the slope, not a point

Answer 14

so the slope and m are just 1

Answer 15

How do i graph it? Do I just go up 1?

Answer 16

Like up 9 and 1 to the right?

Answer 17

1 can be rewritten as 1/1, so taking that as rise/run, you go over 1 and up 1, over 1 and up 1, etc. from the point (0, 9)

Answer 18

ohhh ok! can you help me with the next one?

Answer 19

Your graph for the first one will look like this

Answer 20

yep it does :)

Answer 21

y = 2x - 5

Answer 22

y = 2x - 5
-2x

Answer 23

Now Im stuck

Answer 24

@cholo71796