exam Maths Puzzle Numerical Ability

I am lost on this one

Graph Y=3x^2-8x+2 and give the vertex, dpmai and range?

Thank you for your help

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exam Other Question

Solve the following system of linear inequalities by graphing.
x + 2y _< 3
2x - 3y_< 6 Triangle ABC is isosceles with base AC. If AB=7x+3, CB=8x-9, and AC=5x+6, find the lengths of the sides of the triangle