Question

What can you say about the y-values of the two functions f(x) = 3x -3 and
g(x) = 7x2 -3?

Answer 1

• g(x) has the smallest possible y-value.

• The minimum y value of g(x) is -3.

Explanation:

Ap3x

Answer 2

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Answer:

• the y-values of g(x) are limited to values of at least -3, those of f(x) are not limited
• the y-values are the same for two different x-values

Explanation:

You can say lots of things about the y-values of these functions. A couple of observations are listed above. In addition, we can say the y-values of g(x) will be greater than those of f(x) for x-values not equal or between the x-values where the y-values are the same.