[Exponential] |x|-2|-1|0|1|2| |y|2/9|2/3|2|6|18| When the x-value increases by 1, the y-value (b-value)

The value of y triples

Step-by-step explanation:

Given:

Required

Determine b value

An exponential equation is:

When

So:

When

So:

Substitute 2 for a

Divide by 2

Take positive square roots of both sides

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.