exam Maths Puzzle Numerical Ability

Can you help me plot the graph to the following functions?

1. f(x)=3^x-2
2. f(x)=log2x

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exam Other Question

Hi, I am looking for some help with this problem, thanks in advance:
Draww the graph of each function;
y= -(x-2)^2 Determine the augmented matrix:p+s+c=600; 12p+10s+8c=5900; 0-s+c=175

Solve for the matrix and please show all work.