exam Maths Puzzle Numerical Ability

I just get confused with problems such as:


y=(1/8)x^2

I need to find the x-intercepts, but I do not know how to put the equation into the form that is needed. I believe it is standard form.

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exam Other Question

Please graph this linear inequalities I do not understand this 3x-Y<6 x>1 y<3 Solve the following systems by substitution
4x - 12y = 5
-x + 3y = -1