Which of the following functions is graphed below? O A. y=[x]+5
O B. y=[x]-7
O C. y=[x]+7
O D. y=[x]-5

Aanswer is c

Step-by-step explanation:

C. y = [x] + 7

Step-by-step explanation:

We would test each option, as we can see, if x=0, y should be 7.

Test each option :

A. y=[0] + 5 = 5 NO

B. y=[0] - 7 = -7 NO

C. y=[0] + 7 = 7 YES

So, the right answer is opt. C

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.