Activities 4

4.1)

Which of these functions are proportional?

$$\begin{array}{llll}\hfill y& =x+90& \hfill & \\ \hfill f(x)& =0.01x& \hfill & \\ \hfill g(x)& =x^2& \hfill & \\ \hfill h(x)& =10000x& \hfill & \end{array}$$

4.2)

Which of these function tables describe proportional functions?

a)

b)

c)

d)

4.3)

Which of these graphs show a proportional function?

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You can find the solutions here.