Unit 7 Review

Front

Back

2

Front

What is the range of the function represented by the graph?

Back

[-2, +∞)

Front

Back

7

Front

Back

Graph of the function is a square root function shifted right by 4 units and up by 2 units.

Front

If the height of a wave varies directly with time, and at 4 seconds the wave is 6 feet high, how many seconds will give a wave that is 10 feet high?

Back

6.6 seconds.

Front

Define direct variation.

Back

Direct variation is a relationship between two variables in which one variable is a constant multiple of the other.

Front

What is the formula for direct variation?

Back

y = kx, where k is the constant of variation.

Front

What does it mean for a function to be increasing?

Back

A function is increasing if, as the input values increase, the output values also increase.

Front

What is the definition of a function's domain?

Back

The domain of a function is the set of all possible input values (x-values) for which the function is defined.

Front

What is the definition of a function's range?

Back

The range of a function is the set of all possible output values (y-values) that the function can produce.