PRE-CAL REVIEW UNIT 1 FLASHCARD 1 LESSONS 1-3

Front

What is the value of f(4) if f(x) = 4x + 5?

Back

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Front

What is the first step to find f(1) if f(x) = 2x + 1?

Back

Plug a 1 in for all the x's

Front

In a function, what is the dependent variable?

Back

The variable that depends on the value of another variable, often represented on the y-axis.

Front

Evaluate f(3) if the graph shows that f(3) = 5.

Back

5

Front

What does f(x) represent in a function?

Back

f(x) is the same thing as y.

Front

What is the general form of a linear function?

Back

f(x) = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the y-intercept of the function f(x) = 3x + 2?

Back

The y-intercept is 2.

Front

What does it mean for a function to be linear?

Back

A linear function creates a straight line when graphed and has a constant rate of change.

Front

If f(x) = 5x - 3, what is f(2)?

Back

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