exam Maths Puzzle Numerical Ability

i just need some help working one of these problems. if i am shown how to do it one time, i can get it after that

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exam Other Question

I really need help with these questions.

Evaluate each function for x= -2,0,and 5.

1.) y = 9 + x

2.) y = x^2 - 1

Please help me because I need to get this to my teacher tommorrow. 2x2 = 3y2 + 5 , x - 3 + 5 = 0