Systems of Equations (All three methods)

Front

The first step in solving using the substitution method is __________.

Back

get either variable by itself

Front

A ________________ is a set of two or more equations that have the same variables.

Back

system of equations

Front

Derrick started up a charity for the local animal shelters. He started selling handmade dog leashes for $5. It cost him $120 to get the supplies to make the leashes. Write an equation for the amount of money he raises, A, if he sells x amount of leashes.

Back

A = -120 + 5x

Front

The solution (x, y) to a system of equations is the point where they...?

Back

Intersect

Front

What is the solution? (1, -1), (-1, 1), (0, -2), (2, 0)

Back

(1, -1)

Front

What is a system of equations?

Back

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

Front

What method involves adding or subtracting equations to eliminate a variable?

Back

Elimination method

Front

In the equation y = 2x + 3, what is the slope?

Back

2

Front

What does it mean if two lines are parallel in a system of equations?

Back

They have no solution; they do not intersect.

Front

What is the graphical representation of a system of equations?

Back

The point(s) where the lines intersect.