Precalculus first of year review

Which of the following is the correct midpoint formula given two endpoints (x₁, y₁) and (x₂, y₂)?

• 
• 
• 
• 

Find the distance.

• 7.1
• 7.8
• 8.7
• 8.9

Which of the following formulas is the distance formula?

Find the distance between each pair of points.

(-6,-10)  and (-2,-10)

Find the missing endpoint given the midpoint (3,4) and the other endpoint (-1,6)

• (1,5)
• (2,10)
• (7,2)
• (1,2)

What is the slope?

• 5

• -5

• 2

• 2/3

What is the y-intercept?

• (0, 5)

• (0, -5)

• (0, 2/3)

• -5

The line x = -3 is...

• Horizontal

• Vertical

The line y = 4 is...

• Horizontal

• Vertical

The equation of the line between the points (0,10) and (5,20) is...