exam Maths Puzzle Numerical Ability

Solve each inequality.Graph the soultions.

7+x(is greater than equal to sign)9

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exam Other Question

Plot the graphs of the following functions. Submit the graphs to the dropbox along with your response.
f(x)=(1/2)x Please help me understand how to get to this point. Which of the following is a logarithmic function?
a. f(x) = x^2
b. L(t) = 1 - e^-t
c. g(q) = q^-2
d. R(x) = 4 ln(x)