Alright, the zeroes are where it intersects with the X-axis so...
4) -15 and 10
5) 6 and 18
6) -5 and 0
7) -20 and -8
8) 2 and 10
9) -21 and 14
Hope I was able to help you :)
Answer:
Correct V100 is right
Step-by-step explanation:
Assume that the points are A, B, and C, B is between A and C, and note that a distinct line segment means that, at most, one point can intersect. This means that if we have AB and AC, AB has more than one point and AB is part of AC, so they are not two distinct lines. However, AB and BC are distinct due to that they only intersect at B. Our options to connect points are AB, AC, and BC. Since AC overlaps BC and AB, if AC is used, we have 1 as our answer. However, we can use AB and BC, increasing our limit to 2.
Look at the picture for a visual (B is the black, and A and C can be interchangeable with the other points), and feel free to ask further questions!
After you type in your equations and hit graph you notice that, if you are in the standard window, your parabola is cut off so you have to choose your "window" button to change the viewing window to see the whole graph. Then you would use your 2nd button and "trace" and "intersect" to find the points of intersection of the 2 graphs. The first point is at (-.90901, 16.81812) and the second point is at (5.9090909, 3.1818182). Graphing calculators are quite amazing!