Math Problem Statement

A line has a slope of 8 and a y-intercept of –5. Write its equation in slope-intercept form. Write your answer using integers, proper fractions, and improper fractions in simplest form.

Solution

The slope-intercept form of a line's equation is given by:

y=mx+by = mx + b

where:

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

Given:

  • Slope m=8m = 8
  • Y-intercept b=5b = -5

Substituting these values:

y=8x5y = 8x - 5

This is the required equation of the line in slope-intercept form.

Would you like more details or have any questions?

Related Questions:

  1. How do you find the slope of a line given two points?
  2. Convert y=8x5y = 8x - 5 into standard form.
  3. Find the x-intercept of the line y=8x5y = 8x - 5.
  4. What is the equation of a line parallel to y=8x5y = 8x - 5 and passing through (2,3)?
  5. What is the equation of a line perpendicular to y=8x5y = 8x - 5 and passing through (1,-2)?

Tip: The slope of a line perpendicular to another line is the negative reciprocal of the original slope.

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Math Problem Analysis

Mathematical Concepts

Algebra
Slope-Intercept Form
Linear Equations

Formulas

Slope-intercept form: y = mx + b

Theorems

Slope-intercept form of a linear equation

Suitable Grade Level

Grades 7-9