Question

First to answer get medal!!!!!
Identify the equation of the graph shown.


A)
y = 2x + 3


B)
y = 2x - 3


C)
y = -2x + 3


D)
y = -2x - 3

Answer 1

Do you know about y-intercepts?

Answer 2

lol i need help again

Answer 3

That's okay!

Answer 4

i dont know much about them

Answer 5

y=mx+b where m= slope and b= y-intercept.

Answer 6

y-intercept is where the graph crosses the y-axis. (o,y)

Answer 7

It crosses at y=+3

Answer 8

ok

Answer 9

So, any answers with mx-3 is incorrect.

Answer 10

Now its to find the slope.

Answer 11

A graph that is increasing goes up to the right, like this ----> /
A graph that is decreasing goes down,like this ---? \

Answer 12

Looks like a negative slope, but we can calculate slope using rise/run.

Answer 13

so its going down then?

Answer 14

However, if you find this to be a negative slope, it will then be
y=-mx+3
Do you think it is negative?

Answer 15

yes

Answer 16

Look at how the y values and x values change.. Do they decrease or increase over time, that will help you too.

I find this to be a negative slope, too. C is the only correct answer.

Answer 17

ohhh ok i see what you mean thx!!

Answer 18

You're welcome . :)