When 18 is subtracted from the square of a number, the result is 3 times the number. find the negative solution

x = -3

Step-by-step explanation:

Let the number be "x"

"When 18 is subtracted from square of a number" can be written as :

3 times the number, can be written as:

So we equate and write:

We rearrange and solve by factoring:

x is 6

x is -3

The negative solution is:

x = -3

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).