Question

Fans & Medals!!
Which function has the greatest rate of change?

A.
6x – 7y = 21

B.
y = 2x – 2

C.
x y
2 7
3 13
4 19
D. http://static.k12.com/calms_media/media/1523000_1523500/1523241/1/0e13f22fd8434ba8776b9a5e59dab888deeef694/MS_IMC-1400831-161106.jpg

Answer 1

@confluxepic

Answer 2

find their slopes

Answer 3

@LOLAri

For options A and B, write them in the form of y = mx +b where m will be the slope and b is the y intercept.

In this problem, you are interested only in the slope. So, find the value of m in options A and B.

Answer 4

For option C, use the two point slope formula to get the slope.

Answer 5

On option D, find two points on the graph and use the slope formula to get just that, the slope.

Then, compare all 4 slopes. The largest one belongs to the function with the greatest rate of change.

Answer 6

I got option D

Answer 7

Let me check and see what I get.

Answer 8

I'm looking at option C as a contender but I have not checked D.

Answer 9

Did you get a slope for D?

Answer 10

The slope of option C is (7-13)/(2-3) = -6/-1 = 6.

Answer 11

On the line, I chose points (0,-1) and (-1,-4) and got a slope smaller than the one for option C. So, I am going with option C.

You get to choose because it is your problem, okay?

Answer 12

ohh ok thanks a million

Answer 13

You are welcome. What did you decide as the correct option?