Math Problem Statement

what is the y-intercept form of (3,0) and (0,1)

Solution

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

y=mx+by = mx + b

where mm is the slope and bb is the y-intercept.

Step 1: Find the slope (m)

To find the slope, use the formula:

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

Given the two points (3,0)(3, 0) and (0,1)(0, 1):

  • (x1,y1)=(3,0)(x_1, y_1) = (3, 0)
  • (x2,y2)=(0,1)(x_2, y_2) = (0, 1)

Now, substitute the values into the slope formula:

m=1003=13=13m = \frac{1 - 0}{0 - 3} = \frac{1}{-3} = -\frac{1}{3}

Step 2: Find the y-intercept (b)

We know one of the points is the y-intercept, which is (0,1)(0, 1), so the y-intercept b=1b = 1.

Step 3: Write the equation in slope-intercept form

Now that we have the slope m=13m = -\frac{1}{3} and the y-intercept b=1b = 1, we can write the equation of the line:

y=13x+1y = -\frac{1}{3}x + 1

This is the slope-intercept form of the line passing through the points (3,0)(3, 0) and (0,1)(0, 1).

Would you like more details or have any questions?

Here are 5 related questions to explore further:

  1. How do you convert from slope-intercept form to standard form?
  2. What is the slope formula and how is it derived?
  3. How do you find the x-intercept of a line given its equation?
  4. What is the point-slope form of a line, and when is it useful?
  5. How do parallel and perpendicular lines relate to their slopes?

Tip: Always check that your equation satisfies the points given by substituting them into the final equation!

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Slope-Intercept Form

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)
Slope-intercept form: y = mx + b

Theorems

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Suitable Grade Level

Grades 8-10