Math Problem Statement

Find the y-intercept for the equation. You must show ALL work to earn full credit. 3x - y = 3

Solution

To find the y-intercept of the equation 3xy=33x - y = 3, we need to rewrite it in slope-intercept form, which is y=mx+by = mx + b, where bb represents the y-intercept.

Solution:

  1. Start with the equation: 3xy=33x - y = 3

  2. Solve for yy by isolating it on one side of the equation. Subtract 3x3x from both sides: y=3x+3-y = -3x + 3

  3. Multiply both sides by 1-1 to get yy by itself: y=3x3y = 3x - 3

  4. Now, the equation is in slope-intercept form y=mx+by = mx + b, where b=3b = -3.

Answer:

The y-intercept is 3-3.

Would you like further details on this solution, or do you have any additional questions?


Related Questions

  1. How do you find the x-intercept of the equation 3xy=33x - y = 3?
  2. What does the slope of the line 3xy=33x - y = 3 represent?
  3. How can you graph the equation 3xy=33x - y = 3 using the y-intercept and slope?
  4. How do you convert other linear equations to slope-intercept form?
  5. How does changing the y-intercept affect the graph of a line?

Tip:

To find the y-intercept, set x=0x = 0 in the equation and solve for yy.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Slope-Intercept Form

Formulas

y = mx + b (slope-intercept form)

Theorems

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Suitable Grade Level

Grades 8-10