Question

type the equation that shows the pattern among this set of ordered pairs. (0,4), (1,0), (2,-4), (3,-8)

Answer 1

Since you know all of your y-values, you can find the common ratio and write a general formula (the common ratio is the difference between your y-values)

Answer 2

how do you do that?

Answer 3

So the general formula is y=(common ratio)x+b
Your common ratio is -4 because you subtract 4 to get from one y-value to the next

Answer 4

also, the answer needs to be in slope-intercept form

Answer 5

the common ratio is the slope, b is the y-intercept

Answer 6

Set up your equation with one set of points and your common ratio...\[y=-4x+b\]\[4=-4(0)+b\]...and solve for b

Answer 7

ok. thank you!

Answer 8

so my answer is y=-4x+4 correct?

Answer 9

yep!