Coordinate geometry

What is the rate of change for the table below?

• 1/3
• 3/7
• 7/3
• 3

If x=2, then y=

• -2

• -1

• 0

• 1

• 2

Mr. Cray’s students graphed the number of gumballs they had in a jar by color. Which two colors combined form the same amount as the green gumballs?

• orange and purple

• red and blue

• orange and blue

• red and yellow

Mrs. Martone's 7th grade science class built and launched rockets. The graph below shows the height, in feet, over time, in seconds, of a student's rocket. Use the graph to answer the questions below. What is the height of the rocket at 5 seconds?

• 30 feet

• 60 feet

• 65 feet

• 70 feet

WHAT IS THE ESTIMATED AMOUNT OF SALES AT 21 DEGREES?

• 600

• 400

• 480

• 510

What is the proper domain?

• x≥0
• y≥0
• All real numbers
• {0, 1, 2, 3, 4,...}

Which equation matches the table?

• y = -2 + x
• y = x + 3
• y = x - 3
• y = x - 2

Which of the following rates of change represents the graph?

• $2 for every 1 pound
• $3 for every 1 pound
• $0.50 for every 1 pound
• $1 for every 1 pound

which of these points could NOT be disqualified from being on the chart.

• 16:63

• 15:48

• 17:84

• 14:56

Sasha represented 5 and its opposite on a number line below. Which of the following is true?

• Sasha correctly showed the opposite of 5 to be 0 but marked the points 6 and 0.

• Sasha correctly marked 5 and its opposite, 0, on the number line.

• Sasha made a mistake in showing the opposite of 5 as 0 since the opposite of 5 is -5. She also incorrectly marked 6 instead of 5 on the number line.

• Sasha made a mistake in showing the opposite of 5 as 0 since the opposite of 5 is -5.