Topic 4 Test Corrections

Front

Solve this system of equations: 3x + y = 14 and y = x - 2

Back

(4, 2)

Front

Which of these ordered pairs is a solution point for the equation y = x - 2? (1, 2), (1, -5), (1, 5), (2, 2)

Back

(1, 2)

Front

Find the solution of the system of equations: 2x + 3y = 12 and x - y = 1

Back

(7, 3)

Front

Find the solution of the system of equations: 4x - 5y = -1 and 2x + y = 1

Back

(-3, -5)

Front

What is the solution to this system of equations: x + 2y = 0 and 2x + 4y = 1?

Back

no solution

Front

Define a system of equations.

Back

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

Front

What does it mean for a system of equations to have no solution?

Back

It means the equations represent parallel lines that never intersect.

Front

What is the graphical representation of a solution to a system of equations?

Back

The point where the lines intersect on a graph.

Front

Explain what an ordered pair is.

Back

An ordered pair is a pair of numbers used to locate a point on a coordinate plane, written as (x, y).

Front

What is the substitution method in solving systems of equations?

Back

A method where one equation is solved for one variable, and that expression is substituted into the other equation.