Math Problem Statement
Function Evaluation, Rule of 4
On the right are four functions, each using one of the function representations we've learned in this lesson.
Use functions,
f
(
x
)
,
g ( x ) ,
h ( x )
and
p
(
t
)
to answer the questions on the left.
Evaluate
f
(
−
5
)
f ( − 5 )
Determine
x
when
f
(
x
)
− 3
x
Evaluate
g
(
−
10
)
g ( − 10 )
Determine
x
when
g
(
x
)
− 15
x
Evaluate
h
(
1
)
h ( 1 )
Determine
x
when
h
(
x
)
30
x
Evaluate
p
(
101
)
p ( 101 )
Determine
t
when
p
(
t
)
44
t
f ( x )
1 2 3 4 5 -1 -2 -3 -4 -5 1 2 3 4 5 -1 -2 -3 -4 -5 x y
g ( x ) : {(-16,27), (-15,-4), (-11,6), (-10,-14), (10,43), (50,75), (51,68), (65,17), (72,-15), (74,-10)}
t 20 26 28 44 49 62 82 101 105 111 p ( t ) 32 45 101 99 36 25 44 85 74 41
h ( x )
− 3 x + 15
Solution
To solve the problem, let's go step by step using the functions provided.
Function
The representation of this function is a table of values where the values are listed along with their corresponding values. We will use the provided table for the following evaluations:
1. Evaluate :
From the table (assuming you have a table for ), find the corresponding value of .
2. Determine when :
Look for the value of in the table where .
Function
The function is given by a set of ordered pairs:
3. Evaluate :
From the given set of ordered pairs, find the value of . We see that .
4. Determine when :
From the ordered pairs, we see that when , .
Function
The function is given as:
5. Evaluate :
Substitute into the function :
6. Determine when :
Set and solve for :
Function
The function is provided as a table with values for and their corresponding .
7. Evaluate :
From the table, when , we have .
8. Determine when :
From the table, we see that when .
Summary of Results:
- = (from table).
- when = (from table).
- .
- when .
- .
- when .
- .
- when .
Would you like further explanations on any of these steps?
Related Questions:
- How do you solve for in linear equations like ?
- Can you plot the points for and ?
- What would happen to if the slope changed?
- How does interpreting function tables help in real-world situations?
- Can you convert function into a graph and analyze it?
Tip:
For function evaluations from tables, always ensure the table is read correctly by matching the input value directly with its corresponding output value.
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Math Problem Analysis
Mathematical Concepts
Function Evaluation
Linear Equations
Coordinate Points
Formulas
h(x) = -3x + 15
Theorems
Linear Function Evaluation
Suitable Grade Level
Grades 8-10
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