Evaluate the expression c= -7 and y=5

C - 9y

-52

Step-by-step explanation:

- 7 -9( 5 )  SUBSTITUTE THE NUMBERS INTO EXPRESSION

-7 -45       TIMES -9 WITH 5

-52          ADD

           ( THEY ARE BOTH NEGATIVE SO THEY ARE STILL NEGATIVE )

LET'S GO ALGEBR

The value of the expression is -52

Step-by-step explanation:

Substitute c = -7 and y = 5 in the equation c-9y:

1) -7+-9·5

2) -7+-45

3) -52

  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).

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step-by-step explanation: