Question

Which slope and y-intercept correspond with the graph?
( i will post the graph in the comments ) @bahrom7893 please guide me?
A. slope: -4 y-intercept: 4
B. slope: 1/4 y-intercept: 4
C. - 1/4 y-intercept: -4
D. slope: 4 y-intercept: -4

Answer 1

Slope is how much the graph rises, or falls by; divided by how much it moves to the right or left. So let's pick two points on the graph. Give me a sec, I'm going to draw it.

Answer 2

ok

Answer 3

Those are the two points I picked, you can pick any other points (as long as they're on the line), and get the same answer as mine. So now let's look at the rise (keep in mind, the graph always goes from left to right.

Answer 4

As you can see, as we move along from left to right, the graph is actually falling.

Answer 5

How long is the rise (in our case fall, since the graph is going down)

Answer 6

i still dont get it

Answer 7

okay I would have to walk you through step by step, but drawing and uploading gets quite tedious. Follow through this video, it does a pretty good job at explaining:
http://www.youtube.com/watch?v=LR1cpFYCGdU