Algebra Air Test Prep

The area of a playground is 504 square yards.  The length of the playground is (x +8) and the width is (x – 2).  Find the length and width.

• 20

• -26 and 20

• 18 and 28

• 14 and 36

Members of the math club launch a model rocket from ground level with an initial velocity of 96 ft/sec.  This can be modeled with the function h(t) = -16t² + 96t.  When does the maximum height occur?

• 6 seconds

• 3 seconds

• 145 seconds

• 160 seconds

Superman kicks a ball into the air.  The path can be found using the equation d(t) = -16t²+ 48x, how long is the ball above 30 feet?

• seconds

• 5 seconds

• 4 seconds

• 6 seconds

What is point-slope form?

• Ax + By = C

• y = mx + b

• y - y₁ = m(x - x₁)

• y = ax² + bx + c

When do you flip the sign when solving an inequality?

• Every time

• Never

• When you subtract or divide

• When you multiply or divide by a negative number

Solve:

• A

• B

• C

• D

-8<2(x+4) or -3x+4>x-4

• No solutions

• x<-8 or x<2

•  x>-8 or x<2

• x<-8 and x<2

• n > 1 or n < -7
• n > -1 or n < -7
• -7 < n < -1
• no solution

• all real numbers
• no solution
• 0 < v < 6⁄7
• 0 ≤ v ≤ 6/7

Which graph is NOT a function?

• Graph 1

• Graph 2

• Graph 3

• Graph 4