In the function y = 1.25x + 5, y represents the cost of a foot of cable and x represents the number of feet. how much does the cost of cable increase for every foot?
a) x
b) $1.25
c) $5.00
d) $6.25

i will medal

The correct answer is B). $1.25  

Step-by-step explanation:

The function is given to be :

y = 1.25x + 5

where y represents the cost of a foot of cable and x represents the number of feet

Here , 5 represents the initial cost of the cable

And 1.25 represents the cost of the cable which increases for every foot

Thus, The amount of cost of cable which increases for every foot = $1.25

Therefore, The correct answer is B). $1.25

e) none of the above because the measure of angle cba is 101°