ALG 1 EOC REVIEW

A dentist made the scatterplot below to show the number of cavities her patients had as it relates to the number of times they flossed their teeth each week.

Which of the following best describes the correlation for the data?

• A. Positive correlation

• B. Nonlinear correlation

• C. Negative correlation

• D No correlatio.

• A. (3, −1)

• B. (−3, −1)

• C. (−3, 1)

• D. (3, 1)

Which of the following graphs best represents a system of equations that has no solution?

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A family will travel 350 miles from their house in order to reach Dallas, TX. Which inequality can be used to find all possible values of t, the time it will take this family to reach Dallas in hours, if they travel at an average speed of at least r miles per hour?

• A. t ≤ 350r

The graph below shows the relationship between the number of dollars a worker earns and the number of hours worked.

What does the slope of the graph represent?

• A. The number of hours of work it takes to earn $320

• B. The amount of money earned per hour

• C. The amount earned for 40 hours of work

• D. The number of hours worked per dollar earned

The perimeter of a rectangle is 42 centimeters. The length of the rectangle can be represented by (x + 4), and its width can be represented by (2x − 7). What are the dimensions of this rectangle in centimeters?

• A. Length = 10 and width = 11

• B. Length = 8 and width = 13

• C. Length = 6 and width = 15

• D. Length = 12 and width = 9

• A. II and IV

• B. I and III

• C. II and III

• D. I and IV

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In which step below does a mistake first appear in simplifying the expression 0.5(−12c + 6) − 3(c + 4) + 10(c − 5)?

Step 1: −6c + 3 − 3(c + 4) + 10(c − 5)

Step 2: −6c + 3 − 3c − 12 + 10(c − 5)

Step 3: −6c + 3 − 3c − 12 + 10c − 50

Step 4: 7c - 41

• A. Step 1

• B. Step 2

• C. Step 3

• D. Step 4

• y = 200x