8th grade Math STAAR Practice Category 1 & 2

Front

0.17x − 0.03 = 0.03x − 0.002

Back

0.2

Answer explanation

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Front

A gas company charges a $16 monthly service fee and $0.6924 per hundred cubic feet of natural gas used during a month. Which equation best represents y, the gas company's monthly charges in dollars for using x hundred cubic feet of natural gas?

Back

y = 0.6924x + 16

Front

A faucet leaks 0.8 gallon of water every 2 hours. Which graph has a slope that best represents the number of gallons per hour leaked by the faucet?

Back

Front

Which graph represents y as a function of x?

Back

Front

How many inches of rain was in the gauge before the rain began today, and what was the rate at which the rain fell in inches per hour?

Back

There was 1.5 inches in the rain gauge before the rain began, and the rain fell at a rate of 0.75 inches per hour.

Front

Which ordered pair best represents a solution to both equations? Options: (4, −11), (0, 4), (9, −2), (6, 11)

Back

(9, −2)

Front

Back

y= 7x - 9

Front

Function representing the relationship between x (pounds of fudge) and y (total cost in dollars) for 3 pounds of fudge costing $54.99.

Back

Front

Which table does NOT represent y as a function of x?

Back

Front

The volume of salt water on Earth's surface is approximately 350,000,000,000,000,000,000 gallons. How is this number written in scientific notation?

Back

3.5 × 10²⁰