Unit 1B Review

Front

What is the solution set for the inequality 5x + y ≤ -1?

Back

The solution set includes all points (x, y) that lie on or below the line represented by the equation 5x + y = -1.

Front

How do you convert 700 centiliters/day to Liters/year?

Back

To convert, use the conversion: 700 centiliters = 7 liters. Then, multiply by the number of days in a year (365): 7 liters/day * 365 days = 2,555 Liters/year.

Front

What does the graph of y ≤ 2/5x + 1 represent?

Back

It represents all points (x, y) that lie on or below the line y = 2/5x + 1.

Front

How many pounds are in 40 ounces?

Back

40 ounces = 2.5 pounds (since 16 ounces = 1 pound).

Front

What system of inequalities is represented by the graph of y ≤ 2x - 1 and y > -2x + 3?

Back

The system includes all points that satisfy both inequalities.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you determine if a point is a solution to an inequality?

Back

Substitute the x and y values of the point into the inequality. If the inequality holds true, the point is a solution.

Front

What is the meaning of 'y ≥ -2/5x + 1'?

Back

It means that y is greater than or equal to the value of -2/5x + 1 for all x.

Front

How do you graph the inequality y < 2x - 1?

Back

Graph the line y = 2x - 1 as a dashed line and shade below it to represent all points where y is less than 2x - 1.

Front

What is the process to convert ounces to pounds?

Back

Divide the number of ounces by 16 (since 16 ounces = 1 pound).