Algebra

Vocabulary

100

What is slope-intercept form?

y = mx + b

200

process of eliminating one of the variables in a system of equations using addition or subtraction in conjunction with multiplication or division and solving the system of equations

Elimination

300

A number that describes both the direction and the steepness of the line.

Hint: rise / run 

Slope

400

The point where the graph intersects the y-axis

Y- Intercept

500

A method of solving a system of equations by substituting the value of a variable in one equation in for the same variable of the other equation and evaluating

Substitution

Elimination

100

8x + y = -16

-3x + y = -5

(-1, -8)

200

x − y = 11 

2x + y = 19

( 10, -1)

300

−2x − 9y = −25 

−4x − 9y = −23

(-1, 3)

400

−4x − 2y = −12 

4x + 8y = −24

(6, -6)

500

7x + 2y = 24 

8x + 2y = 30

(6, -9)

Substitution

100

−2x − y = −9 

5x − 2y = 18

(4, 1)

200

2x + y = 20 

6x − 5y = 12

(7, 6)

300

x + 3y = 1 

−3x − 3y = −15

(7, -2)

400

−5x − 8y = 17 

2x − 7y = −17

( -5, 1)

500

−2x + 6y = 6 

−7x + 8y = −5

(3, 2)