Solve the word problem. tom plans to mow a lawn today to earn some extra money. he estimates that he will spend $1.80 on fuel and $3.45 on lunch. he will charge $11.50 to mow the lawn. what will be his profit for mowing the lawn?
a. $5.25
b. $6.25
c. $9.85
d. $16.75

answer:

(-8,7)

explanation:

we know that  

f

(

−

3

)

=

7

therefore, if we wish to get the output as 7, in the function, we need to have our input to be -3.

looking at the function  

f

(

x

+

5

)

, what should the value of x be, such that the input in the function becomes 7?

we simply equate the terms,

x

+

5

=

−

3

x

=

−

8

thus, the point on the new function would be  

(

−

8

,

7

)