Math Problem Statement

Write an equation of a line in slope-intercept form with the given slope and y-intercept. Slope: 8, y-intercept: -3.

Solution

The problem asks to write the equation of a line in slope-intercept form, given a slope of 8 and a y-intercept of -3.

The slope-intercept form of a line is:

y=mx+by = mx + b

where:

  • mm is the slope,
  • bb is the y-intercept.

Given:

  • m=8m = 8 (slope),
  • b=3b = -3 (y-intercept),

Substitute these values into the slope-intercept equation:

y=8x3y = 8x - 3

Thus, the equation of the line is:

y=8x3y = 8x - 3

Would you like more details or have any questions?

Here are 5 related questions you can explore:

  1. How do you graph a line using slope-intercept form?
  2. What does the slope represent in real-world applications?
  3. How would the equation change if the slope were negative?
  4. How do you find the x-intercept of a line given its equation?
  5. What happens if the y-intercept is zero?

Tip: When graphing a line, the y-intercept tells you where the line crosses the y-axis, and the slope determines how steep the line is.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Algebra

Formulas

Slope-intercept form: y = mx + b

Theorems

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Suitable Grade Level

Grades 7-9