Unit 1 Extra Review

Front

What is the DOMAIN of a function?

Back

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

Front

What does the vertical line test determine?

Back

The vertical line test determines if a graph represents a function by checking if any vertical line intersects the graph at more than one point.

Front

In the equation y = 2.75x + 4.25, what does y represent?

Back

y represents the total cost of the fixed fee plus charge per mile.

Front

What does the slope in a linear equation represent?

Back

The slope represents the rate of change of the dependent variable with respect to the independent variable.

Front

What is a linear equation?

Back

A linear equation is an equation that forms a straight line when graphed, typically in the form y = mx + b.

Front

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

Back

The y-intercept represents the value of y when x is 0, indicating where the line crosses the y-axis.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1).

Front

What is the meaning of the term 'fixed fee' in a cost equation?

Back

The fixed fee is a constant charge that does not change with the number of units consumed or used.

Front

In the equation p = 0.85t + 3.95, what does t represent?

Back

t represents the number of toppings on the ice cream.

Front

What is a function?

Back

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