First let's solve for the rate, "b", by setting up a ratio with the two points given:

16.875/7.5=(ar^3)/(ar)

2.25=r^2

r=1.5

Now we need to solve for the initial value a using either point given...

7.5=a(1.5)^1

7.5=1.5a

a=5

So now we have solved for both variables and have a complete equation:

y=5(1.5)^x

3 0

2 years ago

For homework Tina is asked to write down the opposite value for each number listed which comparison did Tina write incorrectly

katovenus [111]

In writing down the opposite value of each number, the comparison Tina wrote incorrectly is: Comparison X

<em><u>Recall:</u></em>

Opposite values of a number are numbers that are of the same distance from point zero on a number line.

For example, if a is a number, the opposite of a is -a. Or if -3 is a number, the opposite of -3 is 3 because -3 and 3 are both 3 units away from point zero on a number line.

Thus, Tina's comparison is given in the diagram attached below.

The comparison labelled X is incorrect because -(-9) = 9. Opposite of 9 is -9.

Therefore, in writing down the opposite value of each number, the comparison Tina wrote incorrectly is: Comparison X

Learn more about opposite value of a number on:

brainly.com/question/12427791