3/11 grade 8

A crane is lowering a concrete block from a height of 270 feet above the ground at a constant rate of 2.5 feet per second. Which function can be used to determine h, the height, in feet, above the ground of the concrete block after s seconds?

• h=270s+2.5

• h=2.5s+270

• h=270 -2.5s

• h=2.5s -270

The graph of a system of linear equations is shown below.

Which ordered pair is the best estimate for the solution of this system of linear equations?

• (-6,-2)

• (-3,2)

• (4,-4)

• (6,8)

The scatter plot below shows the average number of customers who visit a food truck per day, depending on the number of days the food truck stays in the same location.

Which statement best describes the association between the number of days the food truck is in the same location and the number of customers who visit the food truck per day?

• There is no association

• There is a nonlinear association

• There is a positive linear association

• There is a negative linear association

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Is the function Linear or Nonlinear?

• Linear
• Nonlinear

Solve:
2x + 1 = 2x - 1

• No Solution
• x = 0
• Infinitely Many Solutions

Solve:
3x + 15 = 3(x + 5)

• No Solution
• x = 15
• Infinitely Many Solutions