Find the slope of the line that passes through the following points:

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Presentation transcript:

Find the slope of the line that passes through the following points: Bellringer DATE?? Find the slope of the line that passes through the following points: (-2, 6) and (3,16). A. 1/2 B. -1/2 C. 2 D. -2 E.-6

What did we learn yesterday? *How to calculate the slope of a line* *Given a graph (Rise/Run) *Given 2 points (Formula)

What are we going to learn today? Writing Equations in Slope-intercept Form *Given the slope & and point *Given Slope & y-intercept *Given Standard Form Equation *Given 2 points

What is Slope-intercept Form? b = ??

Example 1 6 -4 Write the slope-intercept form of the equation. Writing slope-intercept form equation given SLOPE & Y-INTERCEPT Write the slope-intercept form of the equation. Slope = 6 Y-intercept = -4 6 -4 y = _____x + ________ y = 6x - 4

Writing equations from Standard Form to Example 2 Writing equations from Standard Form to Slope-intercept Form 3x + 3y = 12 -3x -3x 3y = 12 - 3x y = 4 - x 3 3 3 y = -x + 4

Writing slope-intercept form equation given Example 3 Writing slope-intercept form equation given SLOPE & 1 point Through: (3, 1), Slope = 2 x y 1 = 6 + b -6 -6 y = 2x + b 1 = 2(3) + b 2 -5 b = -5 y = _____x + ______ y = 2x - 5

Example 4 m = 1 Through: (0, -5) and (1, -4) Writing slope-intercept form equation given 2 points Through: (0, -5) and (1, -4) Step 1: Find the slope using the formula m = 1

Step 2: Find the value of b Through: (0, -5) and (1, -4) y = 1x + b -5 = 1(0) + b -5 = b 1 -5 b = -5 y = _____x + ______ y = 1x - 5

Whiteboard Expectations Treat the materials as if they were your own! Stay on task! Use the whiteboards for academic work Everyone in each group must take a turn writing on the whiteboard at least once

Write the slope-intercept form QUESTION 1 Write the slope-intercept form of the equation. Slope = -3 Y-intercept = 5 y = -3x +5

QUESTION 2 -8x + 4y = 12 Write the equation from Standard Form to Slope-intercept Form Write the slope-intercept form of the equation. -8x + 4y = 12

QUESTION 3 Through: (6, 2), Slope = 4 Writing slope-intercept form equation given SLOPE & 1 point Write the slope-intercept form of the equation. Through: (6, 2), Slope = 4

QUESTION 4 Through: (-2, -5) and (-3, -3) Writing slope-intercept form equation given 2 points Write the slope-intercept form of the equation. Through: (-2, -5) and (-3, -3)

QUESTION 5 Write the slope-intercept form of the equation. y = -7x - 2 Slope = -7 Y-intercept = -2 y = -7x - 2

Write the slope-intercept form QUESTION 6 Write the slope-intercept form of the equation. -2x + 6y = 7

Write the slope-intercept form QUESTION 7 Write the slope-intercept form of the equation. Through: (3, 5), Slope = -2

Write the slope-intercept form QUESTION 8 Write the slope-intercept form of the equation. Through: (2, 6) and 1, 5)

Find the slope of the line that passes through QUESTION 9 Find the slope of the line that passes through the following points: (4, 1) and (3,2).

Find the slope of the line using QUESTION 10 Find the slope of the line using Rise/Run.

Homework Continue to work on the Linear EquationsHomework Packet! We have covered problems 1-18 and 39-46. It is due the day before your Unit Exam

D-ROSE!