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Mathematics Grade 9
Classroom Assessment Based on Standards
CABS Identifier: “Equations”
MPS Learning Targets/Objective/ Wisconsin Assessment Framework for Mathematics - Descriptors
LT1.0 – Process: Communicate mathematical ideas and reasoning using the vocabulary of mathematics in a variety of ways.
LT9.0 – Modeling: Model and solve mathematical and real-world applications that can be represented by linear equations.
F.3 – Solve linear equations.
F.7 – Demonstrate understanding of properties by solving linear equations.
1) (a) Solve the equation
+ 6 = 8, using any method. Show your work in the box.
Explain how you found your answer.
x = _____
(b) Use another method to check your solution.
2) Write each equation in the form requested. Show all of your work in the boxes provided.
(a) Write y = -22.5(x – 10) + 75.5 in intercept form.
(b) Write y = -6x + 18 in factored form so that the coefficient of x is +1.
(c) Write y = 7.2x – 2.4 in point-slope form, using the point with an x-coordinate of 4.
Developed by the Milwaukee Mathematics Partnership (MMP) with support by the National Science Foundation
under Grant No. 0314898.