Pre-Algebra

Given that the slope is  2/3 and the y intercept is -3 what is the equation of the line?

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

Which is the graph of y= -x + 2?

• A
• B
• C
• D

Which equation represents the following graph?

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

In the following equation, what is the y-intercept?  
y = -3x + 7

• -3
• 7
• -3/7
• 3

What is the slope in the equation:  y=4x+3

• 3
• 4x
• 4
• x

A balloon is released from the top of a building that is 50 meters tall. The balloon rises at the rate of 4 meters per second. Which equation represents the situation?

• y = 4x + 50

• y = - 4x + 50

• y = 50 - 4x

• y = 4x - 50

An airplane is flying at 20,000 ft and needs to ascend up to 35,000 ft to avoid a storm that is up ahead. The plane rises at a rate of 3,000 ft per minute. Which equation shows the height H of the plane after x minutes

• H = 3,000x + 20,000

• H = 3,000x + 35,000

• H = 20,000x + 3,000

• H = 35,000x + 3,000

A swimming pool had a leak. After 2 hours it had 800 gallons in it and then after 6 hours it had gone down to 600 gallons. Which equation represents this situation?

• y = - 50x + 900

• y = - 200x + 900

• y = 200x

• y = 4x

Which equation represents the table?

• y = - 2x - 4

• y = 2x - 2

• y = 2x

• y = -2x - 2

De'Mario was solving translation of a linear of f(x) = x and g(x) = x - 2, but after he was done he noticed their graphs where different from his teacher. His graph is on the left.

(Of the blue Line)

What did he do wrong?

• De'Mario did not put it right on the y - axis.

• De'Mario didn't read the slope correctly.

• De'Mario is right the teacher is just wrong.

• Other