Math Problem Statement

Determine the equation of the line, in slope-intercept form, with the following information: slope: -1/2, y-intercept: (0, 3).

Solution

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

y=mx+by = mx + b

Where:

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

From the information in the image:

  • The slope m=12m = -\frac{1}{2}
  • The y-intercept b=3b = 3

Now, we can substitute these values into the slope-intercept form:

y=12x+3y = -\frac{1}{2}x + 3

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

Would you like more details on how this equation is derived?

Here are 5 questions related to this topic:

  1. How do you find the slope if you are given two points on a line?
  2. What is the general form of a linear equation, and how does it differ from slope-intercept form?
  3. How can you graph the equation y=12x+3y = -\frac{1}{2}x + 3?
  4. How would the equation change if the slope were positive instead of negative?
  5. What happens to the graph of a line when the y-intercept changes?

Tip: To easily graph a line from its equation in slope-intercept form, start by plotting the y-intercept, then use the slope to determine the direction and steepness of the line.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations

Formulas

y = mx + b

Theorems

Slope-Intercept Form

Suitable Grade Level

Grades 7-9