Pre/Post Test Functions Sec 1-3 - OakPark

Front

For h(x) = 15x, find the value of x for which h(x) = 90.

Back

x = 6

Front

The function C(x) = 1/2x + 3 represents the number of inches of snow on the ground x hours after the snowstorm starts. Interpret C(8) = 7.

Back

There is 7 inches of snow after 8 hours.

Front

Does the graph represent a function?

Back

No

Front

What is the function of the table?

Back

y = x + 2

Front

The function f(x) = 250 - 100x represents how many miles f(x) the helicopter is from its destination after x hours. Interpret f(1) = 150.

Back

The helicopter flew 150 miles in 1 hour.

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

What is the slope of a linear function?

Back

The slope is the rate of change of the function, represented as 'm' in the equation y = mx + b.

Front

What does the y-intercept represent in a linear function?

Back

The y-intercept is the value of y when x = 0.

Front

How do you find the x-intercept of a function?

Back

Set y = 0 and solve for x.

Front

What is the domain of a function?

Back

The set of all possible input values (x-values) for the function.