exam Maths Puzzle Numerical Ability

How do you make a equation that is parellel to a given equation?

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exam Other Question

I need help answering this question. I really do not understand.

If two numbers are opposite of each other, are their reciprocals also opposite of each other? Sketch the following function
f(x)= -x squared + 4 and
label
max or min points with appropriate coordinates
y intercept
x intercept if any
describe mathematically how the graph transformed from f(x) = x squared