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M3-026-A01-V02
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F-IF.7.e
Warmup
M3-026-A01-V02
Graph exponential, logarithmic, and trigonometric functions with key features.
Graph exponential growth from complete feature fields
Problem
Analyze \(f(x)~=~5(1.2)^x~+~4\). State \(a,~b,~h,~\text{and}~k\); classify growth or decay; give the intercepts, asymptote, domain, range, and monotonic behavior; compute the anchors at \(x~=~0\) and \(1\); and map the parent anchor \((0,~1)\).
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A
Parameters: a = 5, b = 1.2, h = 0, k = 4. Class: growth because b > 1. Features: y-intercept (0, 5); asymptote y = 4; domain all real numbers; range y > 4; increasing. Anchors: (0, 5), (1, 10); parent anchor (0, 1) maps to (0, 5).
B
Parameters: a = −5, b = 1.2, h = 0, k = 4. Class: growth base reflected across the x-axis. Features: y-intercept (0, −1); asymptote y = 4; domain all real numbers; range y < 4; decreasing. Anchors: (0, −1), (1, −2); parent anchor (0, 1) maps to (0, −1).
C
Parameters: a = 5, b = 1.2, h = 0, k = 5. Class: growth because b > 1. Features: y-intercept (0, 10); asymptote y = 5; domain all real numbers; range y > 5; increasing. Anchors: (0, 10), (1, 11); parent anchor (0, 1) maps to (0, 10).
D
Parameters: a = 5, b = 1.2, h = 0, k = 4. Class: growth because b > 1. Features: y-intercept (0, 9); asymptote y = 4; domain all real numbers; range y > 4; increasing. Anchors: (0, 9), (1, 10); parent anchor (0, 1) maps to (0, 9).
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Curriculum context
Standard F-IF.7.e
Category Functions
Domain Interpreting Functions
Objective Graph exponential, logarithmic, and trigonometric functions with key features.
Problem type Graph exponential growth from complete feature fields