4/1 Graphing Linear Functions

Do Now

1

y-(-1) = -1(x-3)

​Solve for y

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7min

Learning Objective:

SWBAT graph linear functions on a coordinate plane.

Demonstration of Learning:

Given 4 problems, I will be able to correctly graph linear functions on a coordinate plane of at least 3 of 4 questions.

Graph Linear Functions

​1 min

Lesson Vocabulary

4

y-intercept

x-intercept

Δy = 4

Δx = 6

● Slope-Intercept Form:

y = mx + b

● Point-Slope Form:

y − y1 = m(x − x1)

● Standard Form:

Ax + By = C

Linear function

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​1 min

​You have 3 minutes to convert, identify slope, and y-intercept

​ 11x - 4y = 32

​6 mins

​Graph using slope-intercept

​1. Equation must be in y = mx + b form
2. Plot your y - intercept (0, y)
3. Using your y -intercept as a starting point, count your slope and plot another point.
4. Connect the points.

​Example: Graph y = 2x + 5








6 min

​You have 1 minute to discuss with your partner the slope of a horizontal and vertical line.

3min

Demonstration of Learning

23