Math Problem Statement

f(x)=-9x-10

Solution

The function f(x)=9x10f(x) = -9x - 10 is a linear function in the form f(x)=mx+bf(x) = mx + b, where:

  • m=9m = -9 is the slope, which indicates the steepness and direction of the line. Since mm is negative, the line slopes downward from left to right.
  • b=10b = -10 is the y-intercept, the point where the line crosses the y-axis (when x=0x = 0).

Key Points:

  1. Slope: The slope 9-9 means that for every 1 unit increase in xx, f(x)f(x) decreases by 9 units.
  2. Y-Intercept: The y-intercept is -10, so the point (0,10)(0, -10) is on the line.
  3. Graph: This function will produce a straight line, passing through (0,10)(0, -10) and having a negative slope.
  4. Range: Since this is a linear function, the range is all real numbers (,)(-\infty, \infty).
  5. Domain: The domain of f(x)f(x) is also all real numbers (,)(-\infty, \infty).

Would you like details on graphing, interpreting slope and intercepts, or anything else?


Related Questions:

  1. How do you find the x-intercept of the function f(x)=9x10f(x) = -9x - 10?
  2. What are the steps to plot the function f(x)=9x10f(x) = -9x - 10 on a coordinate plane?
  3. How does changing the slope to a positive value affect the graph of f(x)f(x)?
  4. What is the equation of a line parallel to f(x)=9x10f(x) = -9x - 10?
  5. How can you determine if two linear functions are perpendicular?

Tip: For any linear equation y=mx+by = mx + b, the slope mm determines the angle and direction of the line. A larger absolute value of mm means a steeper slope.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Functions
Slope-Intercept Form

Formulas

f(x) = mx + b

Theorems

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Suitable Grade Level

Grades 8-10