Lesson 6B
U3
RCSD Geometry Local MATHEMATICS CURRICULUM
GEOMETRY
Name:___________________________________
Period:________ Date:__________
Lesson 6B: Writing Equations of a Straight Line in Slope Intercept Form
Learning Target:
I can write the equation of a line from two points, a table, and a graph
Example 1: For the graphs below, write the equation of the line in slope intercept form:
a)
b)
Equation:_________________________
Equation:_________________________
Determining the equation of the line when the y-intercept is not given:
Example 2 Write the equation of a line that goes through the points (4, 10) and (6, −12).
1) Find the average rate of change (slope) of the line and y-intercept
2) Write the equation of the line
Example 3. Write the equation of a line that goes through the points (-6, 4) and (-10, 8)
Calculate Linear Regression Equation
Stat, Edit…
Plug x-values into L1
Plug y-values into L2
Stat, Calc, 4: LinReg (ax + b)
Calculate Linear Regression Equation