1.
2. Carla and Jonah are working together to determine if quadrilateral CDEF with coordinates C(2, 3), D(1, 2), E(4, 1), and F(5, 3) has a right angle.
Who is on track to get the correct answer, and why?
Carla is on the right track because she is finding the slopes of the opposite sides to check for right angles.
Carla is on the right track because she is finding the slopes of consecutive sides to check for right angles.
Jonah is on the right track because he is finding the slopes of the opposite sides to check for right angles.
Jonah is on the right track because he is finding the slopes of consecutive sides to check for right angles.
3. Find the weighted average of the numbers 1 and 8, with a weight of 2/5 on the first number and 3/5 on the second number.
5.2
3.5
4.8
1.6
4. What point on the number line is 1/5 of the way from the point −7 to the point 17?
−2.2
1.4
2.0
12.2
