2021 Fall Semester Exam Review #1

Front

Write the inequality for: The sum of a number y and 7.6 is greater than or equal to 24.

Back

Front

If you have $40 to spend on candy ($1.00 each) and soda ($1.50 each), write the inequality for the total cost.

Back

Front

What is the equation of a line that is perpendicular to y = x + 6?

Back

Front

Write the linear equation for a party supply company that charges $4 for an initial fee and $2 for each additional hour in slope-intercept form.

Back

Front

For the function f(x) = -4x + 5, find the range when the domain is x = -2, 0, 2, 4.

Back

Range: {13, 5, -3, -7}.

Front

Define an inequality.

Back

An inequality is a mathematical statement that compares two expressions using symbols such as <, >, ≤, or ≥.

Front

What does the slope-intercept form of a linear equation look like?

Back

Front

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

Back

The slope represents the rate of change of the dependent variable (y) with respect to the independent variable (x).

Front

How do you graph an inequality on a coordinate plane?

Back

1. Graph the boundary line (solid for ≤ or ≥, dashed for < or >). 2. Shade the region that satisfies the inequality.

Front

What is a linear equation?

Back