Question

The total cost for Sophia to build b birdhouses is represented by the function f(b)=3.5b+24.

Answer 1

Answer: For each birdhouse built, the total cost increases by $3.50.

Step-by-step explanation:

Given: The total cost for Sophia to build b birdhouses is represented by the function $f(b)=3.5b+24$

We can see in the function 3.5 is multiplied to b, so when b increases , f(b) increases by 3.5.

$f(1)=3.5(1)+24=3.5+24=27.5$

$f(2)=3.5(2)+24=7+24=31$

$f(3)=3.5(3)+24=10.5+24=34.5$

and $f(2)-f(1)=f(3)-f(2)=3.5$

Therefore, the value of 3.5 represents that for each birdhouse built, the total cost increases by $3.50.

Answer 2

Answer:

For each birdhouse built, the total cost increases by $3.50.

Step-by-step explanation:

The number 3.5 multiplies b, so when b increases by 1, f(b) increases by 3.5. Making 1 more birdhouse increases the total cost by $3.50.