Grade 9 Algebra Midyear Review

Substitution in linear equations: Find the solution to the equation 3x - 2y = 8 when x = 4

• The solution is y = 0

• The solution is y = 10

• The solution is y = -4

• The solution is y = 2

Elimination method for solving equations: Use the elimination method to solve the system of equations:

x + 3y = 3

3x - 4y = -4

Write your answer as a coordinate pair (x, y)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Elimination method for solving equations: Solve the following system of equations using the elimination method:

-2x - y = -8

4x + y =12

Write your answer as a coordinate pair (x, y)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solving linear equations with one variable: Find the value of x in the equation 5x - 7 = 18

• x = 10

• x = 3

• x = 5

• x = 20

Tags

CCSS.7.EE.B.4A

Solving linear equations with one variable: Solve the equation 2(3x - 4) = 10

• x = 5

• x = 3

• x = 2

• x = 10

Tags

CCSS.7.EE.B.4A

Writing equations in slope-intercept form: Write the equation of a line with a slope of 3 and a y-intercept of -2

• y = -3x + 2

• y = 2x - 3

• y = 3x - 2

• y = 3x + 2

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Writing equations in slope-intercept form: Convert the equation 2x + 4y = 8 into slope-intercept form

• y = 2x + 4

• y = -4x + 8

• y = -0.5x + 2

• y = 0.5x - 2

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Solving multi-step linear equations: Find the solution to the equation 3(x + 4) - 2 = 5x - 6

• x = 10

• x = -2

• x = 6

• x = 8

Tags

CCSS.8.EE.C.7B

Graph the inequality: y < 2x + 3

• Graph the line y = 2x+3 as a dashed line and shade the region below it

• Graph the line y = 2x + 3 as a solid line and shade the region above it.

• Graph the line y = 2x + 3 as a solid line and shade the region below it.

• Graph the line y = 2x + 3 as a dashed line and shade the region above it.

Tags

CCSS.HSA.REI.D.12

Solve the linear inequality: 2x-7 > 11

• x > 9

• x = 9

• x < 9

• x > 11

Tags

CCSS.7.EE.B.4B