The maximum number of turning points in a cubic function is 2.
In this case,
The discriminant is , which means the derivative has no real roots. This means there are no critical points and thus no turning points/relative extrema.
by deduction, 5 and 7 are prime numbers and 15 is not a multiple of 70, therefore the answer must be 10 as it is a non-prime number and is a factor of 70 (I.e. 10 and 7)
Supplementary angles are those angles that sum up to 180 degrees. For example, angle 130° and angle 50° are supplementary angles because sum of 130° and 50° is equal to 180°.