Tell us what you might do and write some work for us to check or comment on. Here are some ideas about how to begin. In part (a)(i), (ii), and (iv), the number in parenthesis after the f or g is the value of x since f(x) or g(x) means that what is in the parenthesis is x.
In part (b), use the formula y = mx + b which is the equation of a line in slope intercept form. What do m and b represent? How do you find the value of m from what you are given in the question?
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