Algebra Review All Year

Which situation is best modeled by the

expression 2 + x?

• Tabitha lost 2 out of her x marbles

  under the couch.

• Sudhir had $2 and spent x dollars on

  a hamburger.

• Fatima is 2 years older than her sister

  Delilah who is x years old.

• Dominic ran the x mile course

  2 times.

Which of the following is not equivalent

to the others?

• (-4)^3

• (-4)(-16)

• -(4 x 4 x 4)

• -64

• 3 + 4m

• 3 + 6m

• 5 + 4m

• 5 + 6m

If x = -1, which quadrant does the point (2x, -x) lie in?

• Quadrant I

• Quadrant II

• Quadrant IIl

• Quadrant IV

The time it takes Jarvis to get to school on his bike is 1/3 of the time it takes to walk. Which equation can be solved to

find the time it takes Jarvis to walk to school if he can bike there in 5 minutes?

• 3w = 5

• -6

• -1.333

• 1.333

• 6

Approximately 9 out of 100 people are left handed. Out of a population of 1740 people, how many are likely to be left handed?

• 139

• 157

• 174

• 193

Charlie is training for a track meet. He used to run a 7 minute mile, but after training all year he can now run it in

5 minutes. What was the percent change over the year?

• 29% increase

• 40% increase

• 29% decrease

• 40% decrease

Which is NOT a solution to the inequality 4x - 7 < 5?

• -2

• 0

• 1

• 3

Which inequality has the solutions graphed below?

• 2x + 7 < 9

• 
• 2x + 7 > 9

•