Math Problem Statement

Complete the function table for the given domain, and plot the points on the graph for f(x) = 2x - 7.

Solution

The task requires filling in the function table based on the equation f(x)=2x7f(x) = 2x - 7, and then plotting the points on the graph.

Step 1: Calculate f(x)=2x7f(x) = 2x - 7 for each value of xx:

  • When x=0x = 0: f(0)=2(0)7=7f(0) = 2(0) - 7 = -7
  • When x=1x = 1: f(1)=2(1)7=5f(1) = 2(1) - 7 = -5
  • When x=2x = 2: f(2)=2(2)7=3f(2) = 2(2) - 7 = -3
  • When x=3x = 3: f(3)=2(3)7=1f(3) = 2(3) - 7 = -1
  • When x=4x = 4: f(4)=2(4)7=1f(4) = 2(4) - 7 = 1

Step 2: The table values are:

xxf(x)f(x)
0-7
1-5
2-3
3-1
41

Step 3: Plot these points on the graph:

  • Plot (0, -7)
  • Plot (1, -5)
  • Plot (2, -3)
  • Plot (3, -1)
  • Plot (4, 1)

This forms a straight line since f(x)=2x7f(x) = 2x - 7 is a linear function.

Would you like further clarification on plotting the points or understanding the function? Here are some related questions:

  1. What is the slope and y-intercept of the function f(x)=2x7f(x) = 2x - 7?
  2. How does changing the slope affect the graph of the line?
  3. Can you find the x-intercept of this line?
  4. What happens if we change the equation to f(x)=2x+7f(x) = -2x + 7?
  5. How would you plot points for a quadratic function instead of a linear one?

Tip: The slope of a line tells you how steep it is; the larger the slope, the steeper the line.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Functions
Graphing

Formulas

f(x) = 2x - 7

Theorems

Linear equation theory

Suitable Grade Level

Grades 6-8