Chapter 10 - Spiral Review

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?

Approximately 9 out of 100 people are

left-handed. Out of a population of

1740 people, how many are likely to

be left-handed?

• 193

• 1933

• 157

• 1,566

• -2

• 1

• 0

• 3

Lorena and Sebastian are both five years old. Every year they each get a cash present from their neighbor. Sebastian gets $1.50 for every year in his age, and Lorena gets $20. How old will they be when Sebastian gets more money than Lorena?

• 9

• 13

• 14

• 20

• 3

• 7

• -3

Which function has (0, 7) on its graph?

A function has x-intercept 3 and y-intercept 2. Which of the functions below could be this function?