Geometry A 1.3 Notes Quiz

What is the distance formula for points on a number line?

• $\left|x_2-x_1\right|$

• $\left|x_{1\ }-x_2\right|$

• $\left|x_{1\ }+x_2\right|$

• $\left|x_2\right|-\left|x_1\right|$

• $\left|x_1\right|-\left|x_2\right|$

What is the distance formula based on?

• Creating a right triangle and the use of Pythagorean's Theorem: a² + b² = c²

• Estimating the diagonal's slope and counting by subtracting

• Taking the square root of a bunch of coordinates in to find a close estimate of length

• guessing

What is the distance formula for points on the coordinate plane?

• $\sqrt{\left(x_2-x_1\right)^2-\left(y_2-y_1\right)^2}$

• $\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}$

• $\sqrt{\left(x_2+x_1\right)^2+\left(y_2+y_1\right)^2}$

• $\sqrt{\left(x_2+x_1\right)^2-\left(y_2+y_1\right)^2}$

What is the midpoint formula for two points on the number line?

• $\frac{x_2}{2}-\frac{x_1}{2}$

• $\frac{x_2-x_1}{2}$

• $\frac{x_2+x_1}{2}$

• $\frac{x_1}{2}+\frac{x_1}{2}$

• Like finding the average

What is the midpoint formula for two points on the coordinate plane?

• $\left(\frac{x_2+x_1}{2},\frac{y_2+y_1}{2}\right)$

• $\left(\frac{x_2-x_1}{2},\frac{y_2-y_1}{2}\right)$

• $\left(\frac{y_2+y_1}{2},\frac{x_2+x_1}{2}\right)$

• Like finding the average between the x coordinates and the average between the y coordinates and using it as the coordinate for the midpoint

Would you rather....

• Use notes on the quiz with no corrections

• Not use notes on the quiz, but not be allowed to make corrections

• Have a quizizz review, practice in class, use notes on the quiz and not be able to write long explanations on corrections

• choose not to take the quiz, get a missing (0) score instead