exam Maths Puzzle Numerical Ability

I have no idea what this could be: y=2^x and y=log2x
It says to identify the graph that represents the corresponding function.
The lines are (1, -3) (0,0) (-5,1)
I really do

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exam Other Question

Can someone please help me to simplify this without negative exponents?
(xy^5 / x^-4y^2)^-2
Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph

2x + 3y = 9