2024 Fall Semester Exam Review I.

Front

What is the function that represents the total amount charged by Texam Motors for car repairs?

Back

The function is t = 65h + 24.50, where h is the number of hours spent on the job.

Front

What is the effect of changing the charge from t = 65h + 24.50 to t = 65h + 44.50?

Back

The total amount charged for each job will increase by $20.

Front

What is the slope of the linear equation y = -\frac{5}{2}x + 25?

Back

The slope is -\frac{5}{2}, indicating a decrease in y as x increases.

Front

What does a $10 setup fee imply in a cost graph for T-Shirts-R-Us?

Back

It means that all customers must pay an initial fee of $10 before any t-shirts are printed.

Front

How do you determine if two lines are parallel?

Back

Two lines are parallel if they have the same slope.

Front

What is the equation of a line parallel to y = \frac{3}{4}x + 7 that passes through the point (-8, 4)?

Back

The equation is y = \frac{3}{4}x + 10.

Front

What does the function f(x) = {(0, -2), (1, -1), (2, 0), (3, 1)} represent?

Back

It represents a set of ordered pairs that define a function.

Front

What is the meaning of the y-intercept in a linear equation?

Back

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

Front

How can you represent a function using a table of values?

Back

A function can be represented by listing ordered pairs (x, f(x)) in a table.

Front

What is the significance of the slope in a linear equation?

Back

The slope indicates the rate of change of y with respect to x.