A computer technician charges a fixed amount for a repair, plus an additional amount per hour. The equation below describes y, the total amount the technician charges, in dollars, based on x hours for the repair.
y=45x+75
What is the meaning of the initial amount for the equation?
A.
It means the technician charges $45 per hour for the repair.
B.
It means the technician charges a fixed amount of $45 for the repair.
C.
It means the technician charges a fixed amount of $75 for the repair.
D.
It means the technician charges $75 per hour for the repair.
B. It means the technician charges a fixed amount of $45 for the repair.
The graph below shows the distance between a helicopter and an airport.
The graph titled distance to airport shows distance in miles on the vertical axis and time in hours in horizontal axis. The graph starts at (0, 525) and ends at the point (3.75, 0).
Which of these correctly describes the meaning of the y-intercept of the graph?
A.
The helicopter ends its journey 525 miles away from the airport.
B.
The helicopter takes 3.75 hours to travel to its final destination at the airport.
C.
The helicopter begins its journey 525 miles away from the airport.
D.
The helicopter takes 3.75 hours to travel to its final destination away from the airport.
C. The helicopter begins its journey 525 miles away from the airport.
A student makes money by watching the neighbors’ dog. The situation is modeled in the graph below.
The graph titled money made shows Fee in dollars from 0 to 130 on the y axis in increments of 10 and time in days from 0 to 10 the line passes through the points (0, 20), (1, 30), (2, 40).
Select the statement that describes the relationship between the amount of money the student makes and time in days.
A.
The student charges $11 plus an additional $20 per day.
B.
The student charges $20 plus an additional $11 per day.
C.
The student charges $20 plus an additional $10 per day.
D.
The student charges $10 plus an additional $20 per day.
B. The student charges $20 plus an additional $11 per day.
What is the first step to solve the inequality x-5<x/6
A. Divide both sides of the inequality by 6 to simplify: x/6 - 5/6 <6
B. Divide both sides of the inequality by x to simplify: 1- 5/x <6
C. Multiply both sides of the inequality by x to simplify: x-5 < 6
D. Multiply both sides of the inequality by 6 to simplify: 6x-30 < x