Math Problem Statement

Find the slope (m) and y-intercept (b) for the equations: (1) y = 4x - 10, (2) 4 - 10x = y.

Solution

To solve for mm (the slope) and bb (the y-intercept) in each equation, let's rewrite each in the slope-intercept form y=mx+by = mx + b, where mm is the slope and bb is the y-intercept.

Problem (1)

Given: y=4x10y = 4x - 10 This equation is already in slope-intercept form y=mx+by = mx + b.

  • Slope (m): m=4m = 4
  • Y-intercept (b): b=10b = -10

Problem (2)

Given: 410x=y4 - 10x = y Rearrange to match y=mx+by = mx + b: y=10x+4y = -10x + 4

  • Slope (m): m=10m = -10
  • Y-intercept (b): b=4b = 4

Summary:

  1. Equation (1): y=4x10y = 4x - 10

    • m=4m = 4
    • b=10b = -10
  2. Equation (2): y=10x+4y = -10x + 4

    • m=10m = -10
    • b=4b = 4

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Related Questions:

  1. How do we find the slope from two points on a line?
  2. What are the different forms of a linear equation?
  3. How do we convert an equation from standard form to slope-intercept form?
  4. How can we determine if two lines are parallel?
  5. How can we find the x-intercept of a line?

Tip:

Always try to rearrange equations into slope-intercept form y=mx+by = mx + b to quickly identify the slope and y-intercept.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope-Intercept Form

Formulas

Slope-intercept form y = mx + b

Theorems

Slope-Intercept Form of a Line

Suitable Grade Level

Grades 7-9