Module 7 Test Review. Formulas Shifting Functions  Given g(x) on a graph, f(x) = g(x) + 7 would mean that…..  Answer: g(x) would be shifted 7 units.

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Presentation transcript:

Module 7 Test Review

Formulas

Shifting Functions  Given g(x) on a graph, f(x) = g(x) + 7 would mean that…..  Answer: g(x) would be shifted 7 units up

Functions  If f(x) = g(x) - 6, and g(x) = -2x + 7, then what does f(x) = ?  Answer: f(x) = -2x + 1

Fill in the table given f(x) = g(x) – 9 and g(x) = 3x + 7 xf(x)g(x) xf(x)g(x)

Evaluate the Function

Graphing Functions: If g(x) is graphed on the left, graph f(x) = g(x) - 2

Prove it! Determine if the shape on the left is a square.

Evaluate the following problem for the sequence 3, 9, 27, 81

Use this matrix to answer the following questions:  What is the additive identity of the matrix?  What is the additive inverse?  What is the multiplicative identity?  What is the multiplicative inverse?

Solve the system of equations by substitution, elimination, or matrix row reduction:  Answer: (2, -4)

Solve the system of equations using an inverse matrix: Set up: (Write the system of equations as a matrix) Find the inverse matrix: Find the solution: (inverse first)