Question

http://prntscr.com/63uq5t

Answer 1

None, not D. Note that it crosses point (0, 0) and (1, 2)

So y-intercept is 0. Try to find slope.

Answer 2

kayo

Answer 3

Right, \(\rm slope = \dfrac{rise}{run}\)

Answer 4

or think then a

Answer 5

Not quite.

Do you know how the rise over run formula works?

Answer 6

on

Answer 7

OK you have to find a point on the graph where the line crosses. Let's look at the point (1, 2), do you see it?

Answer 8

yes

Answer 9

Now on the next point on the graph where the line crosses is (2, 4), you see it?

Answer 10

yes i do

Answer 11

OK so now let's find the rise. The rise is the number of units (points) you move up or down, but in this case we are moving up. How many points do you have to move up to get equal height with the point (2,4)

Answer 12

4 ithink

Answer 13

Not quite, try again, looking at point (1, 2), how many points do you move up to get an even height with point (2, 4)

Answer 14

2

Answer 15

Right, so now we know that our rise = 2

Now for the run. No matter what, it is the points you move RIGHT after going up or down to get an even height with the next point.

So after you move up two points were are on the point (1,4), right? So now how many points so we move to the right to meet up with the point (2,4)

Answer 16

okay 3

Answer 17

Try again

Answer 18

ITHE N I GUESS 1 4 but i really think its 1

Answer 19

@Luigi0210

Answer 20

@sammixboo

Answer 21

Yes, so the run = 1

Now plug it into the equation \(\rm slope = \dfrac{rise}{run}\) to get slope = 2/1 = 2

So our slope is 2

Answer 22

Now we have this formula we are going to use
y = mx + b
m = slope
b = y-intercept
We know our slope is 2, And saying up above our y-intercept is 0, let's plug in the info

y = 2x + 0

Which equation is equal to that in your choices?

Answer 23

i would say b

Answer 24

Correct

Answer 25

i would say b