It's the graphs that don't touch the x-axis have complex roots. Roots are the points where the parabola touches the x-axis. A,C and E all cross/touch the x-axis so they have real roots.
non-real or complex root parabolas are: B, D, F
The average driving speed would be 62 because you add 198, 150, and 210 and divide the total by 9.
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Answer:
Step-by-step explanation:
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Each centimeter on the map represents 20 miles in real life. Similarly, every twenty miles in real life would be represented as 1 centimeter on the map.
Half a book each month!!! have a good day!
