Domanda del libro di testo
In Exercises 65–70, use the graph of f to find each indicated function value. f(-3)
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Ch. 2 - Functions and Graphs
Blitzer8th EditionCollege AlgebraISBN: 9780136970514
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TOC.tableOfContents
- Ch. P - Fundamental Concepts of Algebra311
- Ch. 1 - Equations and Inequalities398
- Ch. 2 - Functions and Graphs407
- Ch. 3 - Polynomial and Rational Functions306
- Ch. 4 - Exponential and Logarithmic Functions247
- Ch. 5 - Systems of Equations and Inequalities173
- Ch. 6 - Matrices and Determinants143
- Ch. 7 - Conic Sections124
- Ch. 8 - Sequences, Induction, and Probability251
Capitolo 3, Problema 71
Use the graph of g to solve Exercises 71–76.
Find g(-4)
Guida verificata passo dopo passo1
Identify the function g on the graph, which is represented by the blue line.
Locate the x-value of -4 on the horizontal axis (x-axis).
From x = -4, move vertically until you reach the point on the graph of g.
Determine the y-coordinate of this point, which represents g(-4).
Write the value of g(-4) as the y-coordinate found in the previous step.
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Function and Function Notation
A function relates each input (x) to exactly one output (y). Function notation, such as g(-4), means finding the output value of g when the input is -4. Understanding this helps interpret what the question asks: the y-value corresponding to x = -4 on the graph.
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4:56
Function Composition
Reading Values from a Graph
To find g(-4) using the graph, locate the point where x = -4 on the horizontal axis, then find the corresponding y-value on the curve. This y-value is the output of the function at that input. Accurate reading of coordinates from the graph is essential.
Video consigliato:
05:10Graphs & the Rectangular Coordinate System
Coordinate Plane and Axes
The coordinate plane consists of the x-axis (horizontal) and y-axis (vertical), which intersect at the origin (0,0). Points on the graph are given as (x, y). Understanding the axes and how to plot or read points is fundamental to interpreting the graph and solving for function values.
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05:10Graphs & the Rectangular Coordinate System
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Use the graph of g to solve Exercises 71–76.
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