Mid Year Assessment Review 1

You have a cell phone plan that allows for unlimited calling and 1000 text messages for $21.25. Every text message over 1000 text messages will cost $0.10 per text. Your parents will only pay up to $60 for your phone bill.

Write an inequality to model this situation.

• 21.25 + 0.10t $\le$ 60

• 21.25 + 0.10t $\ge$ 60

• 21.25t + 0.10 $\le$ 60

• 21.25t + 0.10 $<$ 60

Does this situation represent a function?

Each U.S. Coin is mapped to its monetary value

• Non Function. Some coins have more than one monetary value. The domain is the set of all U.S. Coins. The range is the set of all possible monetary coin values.

• Function No coin has more than one monetary value. The domain is the set of all U.S. Coins. The range is the set of monetary values assigned to each coin.

Determine whether the following situations represents a function.

A $1, $5, $10, $20, $50 or $100 bill is mapped to all the sets of coins that are the same total values as the bill.

• Non Function. Each bill is equivalent to man different combinations of coins.

• Function. Each bill only has one possible combination of coins.

The accompanying graph shows Ron's distance from home (A) to work (F) at various times during his drive.

Ron left his briefcase at home and had to return to get it. State which point represents when he turned back around to go home.

• Point C

• Point B

• Point D

• Point F

The accompanying graph shows Ron's distance from home (A) to work (F) at various times during his drive.

Ron had to wait at the railroad tracks for a train to pass. How long did he wait?

• 1 minute

• -5 minutes

• 5 minutes

• 10 minutes

What is the first term in the arithmetic sequence _____, 9, ____, 33, 45?

• -3

• -1

• 3

• 6

In which of the following situations does Alex's hourly wage change by a constant percent per unit change in a year?

• Alex's starting hourly wage is $14.50 per hour the first year, and it increases by $1.50 each year.

• Alex's starting hourly wage is $13.00. She receives a $0.50 per hour raise after one year, a $0.75 per hour raise after the second year, a $1.00 per hour raise after the third year, and so on.

• Alex's hourly wage is $20 per hour in the first year, $22 per hour the second year, $24.20 per hour the third year, and so on.

• Alex's starting hourly wage is $15.00. Her hourly wage is $15.75 after one year, $17.00 after two years, $18.75 after three years and so on.

Which points lie on the line whose equation is 8x-2y+7=-9? Select all that apply.

• (-2, 0)

• (1, 3)

• (-1, 4)

• (1, -4)

• (0, -1)

Consider the line containing the points (-3, 7) and (6, -5).

Write the equation for the line.

•  $y=-\frac{2}{3}x-13$  

•  $y=-\frac{4}{3}x-13$  

•  $y=-\frac{4}{3}x+3$  

•  $y=-\frac{2}{3}x\ +3$  

What is the slope and y-intercept of the line?

• Slope = 1

  y-intercept = -4

• Slope = -4

  y-intercept = 1

• Slope = -11

  y-intercept = 4

• Slope = -11

  y-intercept = 4