exam Maths Puzzle Numerical Ability

Consider the function f(x)=x^2-6x+2

A) Find h,the x-coordinate of the vertex of this parabola.

B) Substitute the two integers immediately to the left of h and two int

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exam Other Question

If set A = {3,4,5,6,7} and set B = {1,2,3,4}:
(a) What is A (u shaped up i think it is called an union) B?
(b) What is A ( u shaped downward im not sure of what it is called) b Translate statement into algebriac equation. Let X represent the number, 12 less than 5 a number is 18.

Is this the correct anwer? (12 - 5)= 18

Thanks so much for you help!