Math Problem Statement

Write an equation in point slope form of a line With an x intercept of (2,0) and a y intercept of (0,3)

Solution

To write the equation of a line in point-slope form, we need a point on the line and the slope.

Step 1: Find the slope mm.

The slope mm of a line passing through two points (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2) is given by:

m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}

Using the points (2,0)(2, 0) (x-intercept) and (0,3)(0, 3) (y-intercept):

m=3002=32=32m = \frac{3 - 0}{0 - 2} = \frac{3}{-2} = -\frac{3}{2}

Step 2: Use the point-slope form of the equation.

The point-slope form of a line's equation is:

yy1=m(xx1)y - y_1 = m(x - x_1)

You can choose either (2,0)(2, 0) or (0,3)(0, 3) as the point (x1,y1)(x_1, y_1). Using (2,0)(2, 0):

y0=32(x2)y - 0 = -\frac{3}{2}(x - 2)

This simplifies to:

y=32(x2)y = -\frac{3}{2}(x - 2)

So, the equation of the line in point-slope form is:

y=32(x2)y = -\frac{3}{2}(x - 2)

Would you like more details or have any questions?

Here are 5 related questions to expand your understanding:

  1. How would the equation change if the line had a positive slope?
  2. What is the equation of the line in slope-intercept form?
  3. Can you find the distance between the x-intercept and y-intercept?
  4. How do you convert the equation from point-slope to standard form?
  5. What does the slope of 32-\frac{3}{2} indicate about the direction of the line?

Tip: When working with different forms of a line's equation, remember that converting between them often involves simple algebraic manipulations!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Point-Slope Form
Intercepts

Formulas

Slope formula
Point-slope form of a line

Theorems

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Suitable Grade Level

Grades 7-9