Math Problem Statement
The linear parent function f(x)=x is graphed on a coordinate plane. The graph of p(x) represents a transformation of f(x) . Function p(x) has a slope that is less steep than f(x) and is shifted down 2 units and right 5 units.
Which of the following represents linear function p(x) ? A.p(x)=−23(x−2)+5
B.p(x)=2x+5
C.p(x)=0.75(x−5)−2
D.p(x)=−5x−2
Solution
We are given that the function is a transformation of the linear parent function , and we need to account for several transformations:
- Less steep slope: The slope of must be less than 1 (the slope of ).
- Shift down by 2 units: This will subtract 2 from the entire function.
- Shift right by 5 units: This will involve adjusting the -term in the function.
To represent these transformations, we can use the general form of a linear function: where:
- is the new slope (which should be less than 1),
- is the horizontal shift (in this case, 5 units to the right, so ),
- is the vertical shift (in this case, 2 units down, so ).
The correct form of the function should look like this: where is a slope less than 1.
Let's analyze the options:
-
Option A:
- Slope: (which is less than 1, but the shifts are not correct; it shifts left by 2 and up by 5).
- This is incorrect.
-
Option B:
- Slope: 2 (which is greater than 1).
- This is incorrect since the slope is steeper.
-
Option C:
- Slope: 0.75 (less steep than 1).
- Shifts: Right by 5 units (correct), and down by 2 units (correct).
- This is the correct function.
-
Option D:
- Slope: -5 (much steeper, but negative).
- This is incorrect.
Thus, the correct answer is:
C. .
Do you want further details or have any questions?
Related Questions:
- What would the equation be if the function were shifted left instead of right?
- How would the equation change if the slope were steeper instead of less steep?
- How do vertical shifts affect the y-intercept of the function?
- What is the effect of a negative slope on the graph's orientation?
- How can we confirm that a function has been shifted right by 5 units?
Tip: Always check how both the slope and transformation terms affect the overall behavior of the function when dealing with transformations.
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Math Problem Analysis
Mathematical Concepts
Linear Functions
Transformations
Slopes
Horizontal Shifts
Vertical Shifts
Formulas
Linear function: p(x) = m(x - h) + k
Theorems
Transformation of functions
Suitable Grade Level
Grades 8-10
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