Math Problem Statement

f(x)=5x-3

Solution

You provided the function f(x)=5x3f(x) = 5x - 3.

This is a linear function with a slope of 5 and a y-intercept of -3. To analyze this function:

  1. Slope: The slope of the line is 5, meaning that for every unit increase in xx, f(x)f(x) increases by 5 units.
  2. Y-intercept: The y-intercept occurs where x=0x = 0. Substituting x=0x = 0 into the equation, we get f(0)=3f(0) = -3, so the y-intercept is (0,3)(0, -3).
  3. Graph: The function is a straight line with an upward slope, passing through the point (0,3)(0, -3).
  4. Domain: The domain of the function is all real numbers, (,)(-\infty, \infty), since there are no restrictions on xx.
  5. Range: The range is also all real numbers, (,)(-\infty, \infty), as the line extends indefinitely in both directions.

Would you like to solve for specific values of f(x)f(x), or any other details?

Here are 5 related questions:

  1. What is the slope-intercept form of a linear equation?
  2. How do you find the x-intercept of a linear function?
  3. Can you calculate f(2)f(2) for the function f(x)=5x3f(x) = 5x - 3?
  4. What is the relationship between the slope and the steepness of the graph?
  5. How would the graph change if the slope were negative?

Tip: When graphing linear functions, plot the y-intercept first, then use the slope to determine the direction and steepness of the line.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Functions

Formulas

Slope-Intercept Form: y = mx + b

Theorems

Slope of a line
Y-intercept

Suitable Grade Level

Grades 7-9