Test Module 3 - Extra Credit

Front

Diego scores 11 more points than Travis. Together they score 21 points. How many points did each person score?

Back

Diego: 16, Travis: 5

Front

Write the system of inequalities for Carlos who works at a movie theater with 300 seats, charging $7.50 for adults and $5.50 for children, expecting to make at least $2000 for each showing.

Back

x + y ≤ 300, 7.5x + 5.5y ≥ 2000

Front

Which point is a solution to the system of inequalities? (0, 6), (-3, 4), (1, 0), (-4, 3)

Back

(1, 0)

Front

Solve the system of equations: x + 2y = -3, x - y = -12

Back

(-9, 3)

Front

Which point is a solution to the system of inequalities? (0, 6), (-3, 4), (1, 0), (-4, 3)

Back

(1, 0)

Front

What is a system of inequalities?

Back

A set of two or more inequalities with the same variables.

Front

How do you graph a system of inequalities?

Back

Graph each inequality on the same coordinate plane and find the overlapping region.

Front

What does it mean for a point to be a solution to a system of inequalities?

Back

It means that the point satisfies all inequalities in the system.

Front

What is the substitution method in solving systems of equations?

Back

Replace one variable with an expression from another equation.

Front

What is the elimination method in solving systems of equations?

Back

Add or subtract equations to eliminate one variable.