Math Problem Statement

Identify the slope and y-intercept of the equation y = 3/8x - 9.

Solution

In the image, the problem asks you to identify the slope and y-intercept of the equation:

y=38x9y = \frac{3}{8}x - 9

This is in the slope-intercept form of a linear equation, which is:

y=mx+by = mx + b

Where:

  • mm is the slope of the line
  • bb is the y-intercept (the value of yy when x=0x = 0)

From the given equation y=38x9y = \frac{3}{8}x - 9:

  • The slope m=38m = \frac{3}{8}
  • The y-intercept b=9b = -9

So, the slope is 38\frac{3}{8}, and the y-intercept is 9-9.

Would you like more details on this or have any other questions?

Here are 5 related questions to explore:

  1. How do you graph a line using the slope and y-intercept?
  2. How would the graph change if the slope were negative?
  3. What happens if the y-intercept becomes positive?
  4. Can you find the x-intercept of this equation?
  5. How would you write an equation of a line parallel to this one?

Tip: When graphing a line, always start by plotting the y-intercept, then use the slope to determine the next points on the graph.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope-Intercept Form

Formulas

Slope-Intercept Form: y = mx + b

Theorems

Slope Theorem
Y-Intercept Theorem

Suitable Grade Level

Grades 8-10