Find the coordinates of the other endpoint of each line segment, given its midpoint and one endpoint. See Example 5(b). midpoint (-9, 8), endpoint (-16, 9)
Table of contents
- 0. Review of Algebra4h 18m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations1h 43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 5m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 22m
- 10. Combinatorics & Probability1h 45m
2. Graphs of Equations
Two-Variable Equations
Problem 55
Textbook Question
Let ƒ(x)=-3x+4 and g(x)=-x2+4x+1. Find each of the following. Simplify if necessary. ƒ(1/3)
Verified step by step guidance1
Identify the function ƒ(x) given as ƒ(x) = -3x + 4.
To find ƒ(1/3), substitute x = \frac{1}{3} into the function ƒ(x).
Write the substitution explicitly: ƒ\left(\frac{1}{3}\right) = -3 \times \frac{1}{3} + 4.
Multiply -3 by \frac{1}{3} to simplify the expression inside the function.
Add the result of the multiplication to 4 to get the simplified value of ƒ\left(\frac{1}{3}\right).
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Function Evaluation
Function evaluation involves substituting a given input value into the function's formula and simplifying to find the output. For example, to find ƒ(1/3), replace x with 1/3 in ƒ(x) and simplify the expression.
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Linear Functions
A linear function has the form ƒ(x) = mx + b, where m and b are constants. Its graph is a straight line, and evaluating it involves simple arithmetic operations like multiplication and addition.
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Linear Inequalities
Simplification of Algebraic Expressions
Simplification means reducing an expression to its simplest form by performing arithmetic operations and combining like terms. This step ensures the final answer is clear and concise.
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