exam Maths Puzzle Numerical Ability

Can someone graph the following problem for me.

f(x) = -3x -2

I am really lost in doing graphs.
Thanks allot,
Lyn

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exam Other Question
Find the zero of the polynomial function:
f(x) = x to the third power - 6x to the second power + 9x Good morning tutors,

I have a couple of questions. I have to solve and graph these equations and I was wondering if you could help me with these problems?

y = x^2 - 4x
and
y = 2x^2

Thank you very much.