SAT MATH REVIEW

If f(x) = 2x + 1 and g(x) = 4x - 4, what is f(0) x g(0)?

• -5

• -4

• 4

• 8

Tags

CCSS.HSF.IF.A.2

A researcher places two colonies of bacteria into two petri dishes that each have area 10 square centimeters. After the initial placement of the bacteria the researcher measures and records the area covered by the bacteria in each dish every ten minutes. The data for each dish were fit by a smooth curve, as shown above, where each curve represents the area of a dish covered by bacteria as a function of time, in hours. Which of the following is a correct statement about the data above?

• At time t = 0, both dishes are 100% covered by bacteria.

• At time t = 0, bacteria covers 10% of Dish 1 and 20% of Dish 2.

• At time t= 0, Dish 2 is covered with 50% more bacteria than Dish 1.

• For the first hour, the area covered in Dish 2 is increasing at a higher average rate than the area covered in Dish 1.

Tags

CCSS.HSF-IF.C.7E

The table above shows the number of fire any colonies found in Greenville from 1992 to 2995. Which of the following graphs best represents the number of fire ant colonies in Greenville during this time period?

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• 
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Tags

CCSS.8.EE.B.5

If f(x) is a linear function that passes through the points (4, 3) and (-4, -9), what is the y-intercept of f(x)?

• (0, 2)

• (2, 0)

• (0, -3)

• (-3, 0)

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

A company's manager estimated that the cost C, in dollars of producing "n" items is C = 7n + 350. The company sells each item for $12. The company makes a profit when total income from selling a quantity of items is greater than the total cost of producing that quantity of items. Which of the following inequalities gives all possible values of "n" for which the manager estimates that the company will make a profit?

• n < 70

• n < 84

• n > 70

• n > 84

A typical image taken of the surface of Mars by a camera is 11.2 gigabits in size. A tracking station on Earth can receive data from the spacecraft at a data rate of 3 megabits per second for a maximum of 11 hours each day. If 1 gigabit equals 1,024 megabits, what is the maximum number of typical images that the tracking station could receive from the camera each day?

• 3

• 10

• 56

• 144

Tags

CCSS.7.NS.A.3

If y:z is equal to 1:3 and z:a is equal to 2:3, what ratio is equal to y:a?

• 2:9

• 1:3

• 1:2

• 2:3

What is the average of 2x + 4, 5x - 1, and -x+3?

• x+2

• x-2

• 2x+2

• 2x-2

Tags

CCSS.6.EE.A.2C

A printer can print at a rate of 5 pages per minute. How many hours will it take to print 300 pages?

• 0.5 hours

• 1 hour

• 1.5 hours

• 3 hours

Tags

CCSS.4.MD.A.2

A group of people are surveyed about the number of books they read each month, and the results are graphed in the pie chart. If the sample accurately represents the 420,000 people in the city of Omaha, how many people in Omaha can we expect to read 3 or more books per month?

• 84,000

• 105,000

• 189,000

• 218,000

Tags

CCSS.7.SP.A.2