exam Maths Puzzle Numerical Ability

please describe each of the following graphs of y. Give (a) its amplitude (if applicable), (b)its maximum and minimum (if applicable) and (c) its period. If it has no amplitude, ma

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exam Other Question

Divide:
-x^3 + 75x - 250 / x + 10

I started with x + 10 outside the division box and -x^3 + 75x - 250 inside the box. but when I started to divide them out it wasnt working.
Directions: find a common solution for each system of equations. The equations are y=x+1 and y=3x-2. My answer for the equations was (1.5,2.5). Am I correct. If not show how you got the answer. Thanx.