exam Maths Puzzle Numerical Ability

I am supposed to identify the axis of symmetry, create a suitable table of values and sketch a graph, but am confused by all of this.
Any help is appreciated

-y=x^2-5x+3

Tha

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exam Other Question

Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard form, ax^2 + bx + c = 0.

Solution: 5, only solution

I am confused with trying to back into the equation from the solution.
1) What can you tell about the graph of a polynomial function by examining the leading coefficient? (Assume the polynomial is arranged in descending order.)


2) What can you t