MATH REVIEW FLASHCARD

Front

Which of the following is NOT an example of a linear inequality in two variables?    y ≤ 3x + 4, 0 > 2x +y, 6y - 5x ≥ 2, 3 + 11y = 7

Back

3 + 11y = 7

Front

Which of the following statements correctly describes the solutions to a linear inequality in two variables compared to a linear equation in two variables?

Back

The solution to a linear inequality is a region of points on the graph, while the solution to a linear equation is a single point on the graph.

Front

Linear inequality in two variables

Back

A mathematical expression that relates two expressions using an inequality sign <, ≤, ≥, or > instead of an equality sign.

Front

Which linear inequality has a broken line graph? Options: y ≥ 3x + 4, y ≤ 5x, y > -3x - 7, y ≠ 1/3x + 5

Back

y > -3x - 7

Front

In a given graph, how do you identify the solution set of the systems of inequalities?

Back

It is the region where the two regions overlap.

Front

When does systems of linear inequalities have no solutions?

Back

When the two boundary lines are parallel and the shading on the regions does not overlap.

Front

Which set of ordered pairs is a function? Options: {(0, -1), (0, -2), (0, -3), (0, -4)}, {(3, 2), (4, 2), (5, 3), (6, 4)}, {(6, 2), (7, 3), (7, 3), (8, 4)}, {(1, -1), (1, -2), (2, 1), (2, 2)}

Back

{(3, 2), (4, 2), (5, 3), (6, 4)}

Answer explanation

Front

Which of the following does NOT represent a relation? Options: {(1, 2), (3, 4), (-1, 0), (0, 9)}, x + y = 11, {4, 3, 2, 1, 0}, a graph

Back

{4, 3, 2, 1, 0}

Front

In the equation y = 5x + 3, which variable is dependent and which is the independent?

Back

x is the independent, and y is the dependent

Front

Wendy is selling cupcakes. The number of cupcakes she sells determines how much money she earns. Which of the following is the independent variable?

Back

the number of cupcakes sold