Question

Which equation represents the graph of the linear function?



A.
y = −2x+ 1

B.
y = −2x − 1

C.
y = 2x + 1

D.
y = 2x − 1

Answer 1

http://static.k12.com/calms_media/media/330000_330500/330014/1/96ea91906e83f413894b3efee43fb26cacfdd503/MS_ALG_S2_01_04_quiz_Q1_question.gif

Answer 2

First thing we notice is that there's a downward slope. That means the "mx" section will be negative

Answer 3

So a or b

Answer 4

Next thing we notice is that the y-intercept is -1. The "b" section is the y-intercept.

Answer 5

so a

Answer 6

No, the slope formula is y=mx+b. We changed the first part to -2 so it would be y=-2x+b. The b is going to be -1, since it's the same thing as the y-intercept. What would it look like if you substituted "-1" for b?