Topic 3 Review (Functions)

• Yes; Each x-value has a unique y-value.

• Yes; Each y-value has a unique x-value.

• No; Two points have different y-values for the same x-value of 3.

• No; Two points have different x-values for the same y-value of 3.

• Function A. The rate of change is -3.

• Function B. The rate of change is -5.

• Function A. The rate of change is 10.

• Function B. The rate of change is 20.

Is this function linear or non-linear?

• Linear. There are both positive and negative x-values.

• Non-Linear. There are negative x and y-values.

• Linear. It has a constant rate of change.

• Non-Linear. There is no constant rate of change.

Is this function linear or non-linear?

• Linear. The equation is y = x³.

• Non-Linear. There is no y-intercept.

• Linear. It has a constant rate of change.

• Non-Linear. There is no constant rate of change.

• The graph of the function is increasing.

• The graph of the function is decreasing.

• The graph of the function in constant.

• The graph of the function is positive.

The graph of a function is a line that passes through the points (0, 1) and (3, 10). Which shows how to find the rate of change for the function?

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The graph of a function is a line that passes through the points (0, 1) and (3, 10). Write an equation in the form y = mx + b for this function.

• y = 1/10x + 1

• y = 3x - 1

• y = 1/3x + 9

• y = 3x + 1

• y = 90x + 2000

• y = 90x - 2000

• y = -90x + 2000

• y = -90x - 2000

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• Yes; Function A has an initial value of 0 and Function B has an initial value of 3. So, Function B has a greater initial value.

• Yes; Function A has an initial value of 0 and Function B has an initial value of 2 . So, Function B has a greater initial value.

• No; Function A has an initial value of 6 and Function B has an initial value of 3. So, Function A has a greater initial value.

• No; Function A has an initial value of 2 and Function B has an initial value of 0. So, Function A has a greater initial value