Question

Someone Please Help , Ive Done This 3 Times and Still Havent Passed It!

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.
https://static.k12.com/calms_media/media/1523000_1523500/1523241/1/0e13f22fd8434ba8776b9a5e59dab888deeef694/MS_IMC-1400831-161106.jpg

Answer 1

These are all linear functions. The rate of change is therefore the slope, so we're looking for the greatest slope.

What is the slope of each function?

Answer 2

thats what i did before, i found the slope of them all then went with the one that had the biggest slope

Answer 3

Then you might have found an incorrect slope for one or more of the functions. If you post your slopes here I can verify them for you.

Answer 4

@arthur326

Which function has the greatest rate of change?

A.
x y
1 −3
2 −8
3 −13


B.
y = 3x – 8

C.
8x + 4y = 16

D.
https://static.k12.com/calms_media/media/1523000_1523500/1523242/1/95f0fcfdba86aa93f7a0cd83672eb495ee04ca98/MS_IMC-1400831-161107.jpg

for slope

A. -5
B. 3
C. -2
D. -1

so A would be the greatest change in slope correct?

Answer 5

@arthur326 you said you would check my slopes for me, so there they are , if your still up for checking them

Answer 6

Whoa! All your slopes are wrong! I don't know what procedure you used to find them, but you have a misconception somewhere.

Answer 7

i just used

y^2 - y^1
--------
x^2 - x^1

Answer 8

The slope is \(\dfrac{\Delta y}{\Delta x}\).

Answer 9

When you have 2 points \((x_1,y_1)\) and \((x_2, y_2)\), the slope is \(\dfrac{y_2-y_1}{x_2-x_1}\). You don't raise these to any power; it's just the coordinates themselves.

Answer 10

Oh my apologies! You have all the correct slopes for the second problem. I thought you were referring to the original problem and didn't realize that you posted a different one!

Answer 11

i know you dont raise to a power but i didnt wanna use the equation box lol

Answer 12

Your mistake is that -5 is actually the least slope: positive numbers are considered greater than negative ones.

Answer 13

So the greatest among those is actually the one with slope 3.

Answer 14

Tip: in plain text, when you want to denote subscripts, you can do it like this: y_2-y_1. Using the caret denotes a superscript. :)