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Help! I’m awful at graphs and stuff

Help! I’m awful at graphs and stuff-example-1

2 Answers

1 vote

Answer:

a) -2 and 4, b) function 2

Explanation:

Rate of change is the same thing as slope. For the first function, the table, we can use two of the points and the slope formula. I'll use (-1,3) and (-2,5). Remember the slope formula:


m=(y2-y1)/(x2-x1)

Plug the points in:


m=(5-3)/(-2-(-1))\\m=(2)/(-1)\\m=-2

(Remember that subtracting a negative = adding. I look at it like the two 'minus' signs form one plus sign, if that helps)

So the slope of function 1 is -2.

We can do the same thing with the second function. Two points that I notice on the graph are (-1,0) and (0,4). Let's use the same slope formula.


m=(4-0)/(0-(-1))\\m=(4)/(1)\\m=4

And the slope of function 2 is 4. That answers the first part. The second part asks about rate of change.

Function 2 has a greater rate of change, since 4>-2.

Hope this helps!

User Nearoo
by
4.5k points
1 vote

Answer: for b: function one has a greater rate of change

Step-by-step explanation: sorry i don't know the first one

User BumMo Koo
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4.7k points