Bell Ringer 3/19

How is the distance formula correctly written:

• $d\ =\ \sqrt{\left(y_{1\ }-\ y_2\right)^2\ -\left(x_{2\ }-\ x_1\right)^2}\$

• $d\ =\ \sqrt{\left(x_{2\ }-\ x_1\right)^2\ +\ \left(y_{2_{\ }}-\ y_1\ \right)^2}$

• $d\ =\ \sqrt{\left(y_{1\ }-\ y_2\right)^2\ +\ \left(x_{2\ }-\ x_1\right)^2}$

• d = $\sqrt{\left(x\right)^2-\ \left(y\right)^2}$

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

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What is the midpoint between (3, -1) and (7, -5)

• (5, -2)
• (10, -6)
• (5, -3)
• (2, -2)

Find the y-coordinate of the midpoint of the line

• 1
• 2
• -2
• 3

What is the midpoint between (3, -1) and (8, -6)

• (11, -7)
• (-5.5, -3.5)
• (5.5, -3.5)
• (2, -2)

Find the length of line segment AB given A(4, 3) and B(0, 6).

• 3
• 4
• 5
• 7