Unit 2 Show Me What You Remember

Front

What is the equation of a horizontal line at y = -4?

Back

y = -4

Front

What does the slope represent in a cost function?

Back

The cost per minute is $0.05.

Front

How do you determine the range from a set of values?

Back

The range is the set of output values, which in this case is {2, -1, 4, -4}.

Front

In a function relating money earned to pizzas delivered, what is the independent variable?

Back

p = number of pizzas delivered.

Front

Write a function for the cost of DVDs sold at $16 each. Is the graph continuous or discrete?

Back

C = 16n; discrete.

Front

What is the definition of a function in mathematics?

Back

A function is a relation that assigns exactly one output for each input.

Front

What is the meaning of independent variable in a function?

Back

The independent variable is the input value that can be changed freely.

Front

What is the meaning of dependent variable in a function?

Back

The dependent variable is the output value that depends on the independent variable.

Front

How do you find the slope of a line given two points?

Back

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

Front

What is a discrete graph?

Back

A discrete graph consists of distinct, separate points.