Math Problem Statement

Find the slope and the​ y-intercept of the line with the following equation.

yequals=eight ninths89xminus−7

Solution

The equation of the line is given as:

y=89x7y = \frac{8}{9}x - 7

This equation is in the slope-intercept form, which is generally written as:

y=mx+by = mx + b

where:

  • mm is the slope of the line, and
  • bb is the yy-intercept.

Slope:

The slope mm is the coefficient of xx, which is 89\frac{8}{9}.

yy-intercept:

The yy-intercept bb is the constant term, which is 7-7.

Thus:

  • Slope: 89\frac{8}{9}
  • yy-intercept: 7-7

Would you like more details or have any questions?

Here are 5 related questions to deepen your understanding:

  1. How would the slope change if the coefficient of xx were negative?
  2. What does the slope 89\frac{8}{9} indicate about the steepness of the line?
  3. How can you determine the xx-intercept from this equation?
  4. What is the meaning of the yy-intercept in the context of a graph?
  5. How would the line change if the yy-intercept were positive?

Tip: The slope indicates how much the yy-value changes for every unit increase in xx.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Slope-Intercept Form

Formulas

y = mx + b (Slope-Intercept Form)

Theorems

Slope-Intercept Theorem

Suitable Grade Level

Grades 8-10