Chapter 5:Write the equation of a line Given Two Points.

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Presentation transcript:

Chapter 5:Write the equation of a line Given Two Points

Lesson 5.3: Writing an equation given two points -Mathematically Step 1: Substitute values into the slope formula to find the m. Step 2: Select one of the point to substitute into point-slope formula and solve for y.

Lesson 5.3: Writing an equation given two points Write the equation of the line that pass through these points (-1, -3) & (1, 1). Step 1: Substitute values into slope formula to find the m.

Lesson 5.3: Writing an equation given two points -Mathematically Step 2: Select a point to substitute into point-slope formula

Lesson 5.3: Writing an equation given two points Write the equation of the line that pass through these points (-3, 3) & (3, 1). Step 1: Substitute values into slope formula to find the m.

Lesson 5.3: Writing an equation given two points -Mathematically Step 2: Select a point to substitute into point-slope formula

Lesson 5.3: Writing an equation given two points -Graphically Step 1: Plot both points Step 2: Determine the slope (m). Step 3: Find the y-intercept (b). Step 4: Write equation in slope- intercept form

Lesson 5.3: Writing an equation given two points -Graphically Step 1: Plot the points x y Step 2: Determine the slope (m) Step 3: Find the y-intercept Step 4: Write equation in slope-intercept form

Lesson 5.3: Writing an equation given two points -Graphically Step 1: Plot the points x y Step 2: Determine the slope (m) Step 3: Find the y-intercept Step 4: Write equation in slope-intercept form