Math 8 Quarter 2 Benchmark

An Uber ride charges $1.25 per mile and $5.00 for every ride. Which equation describes the total cost, y, per ride for miles x driven?

• y = 6.25x

• y = 1.25x - 5

• y = 1.25x + 5

• y = 5x + 1.25

 An Uber ride charges $1.25 per mile and $5.00 for every ride. How much would it cost for someone to take an Uber for 10 miles?

• $7.50

• $17.50

• $51.25

• $62.50

For which of the following choices is y a nonlinear function of x?

Which equation represents the line graphed below?

Which point falls on the same line that includes (-4, 3) and (2, -2)?

• (-3, 5)

• (2, 1)

• (-9, 5)

• (8, -7)

Which situation below would NOT be represented by a linear function?

• To run a marathon, a runner decides to double their distance each week from the previous week.

• The amount of gas in a car’s gas tank decreases at a rate of 0.05 gallons for each mile they drive on the highway.

• A cell phone battery starting with zero percent, charges at a rate of 42% per hour.

• A student’s test score increases by 5 points per correct answer.

What value of h would ensure the table below is a linear function?

• -0.5

• 1

• 2.5

• 4

• -2

• 9

Which function has the same slope of the linear function in the graph? (select all)

The table shows the number of hours Parker studied for his math tests and his corresponding grade. Another student, Mateo, increased his test scores 6 points for each hour he studied. Which statement  correctly describes the rate of change between hours studied and corresponding test scores of the two students?

• Parker’s test scores increased by 1 point more than Mateo’s test scores for each hour studied.

• Parker’s test scores increased by 3 points more than Mateo’s test scores for each hour studied.

• Mateo’s test scores increased by 1 point more than Parker’s test scores for each hour studied.

• Mateo’s test scores increased by 3 points more than Parker’s test scores for each hour studied.