Math 1 Warm Up In the Practice Workbook… Practice 6-2 (p. 72) #3, 5,21, 25, and 36
Writing Equations in Standard Form REMINDER: Linear Equations in Standard Form Important Facts: a. ________________________________________ b. ________________________________________ ________________________________________
Examples Write the given linear equations in standard form. 1.
Write the given linear equations in standard form. 2.
Write the given linear equations in standard form. 3.
Using Intercepts
Warm-Up 11/29/2012 Write the following equations in standard form:
key terms Y-intercept: ________________________________________ __________________________________________________ X-intercept: ________________________________________ __________________________________________________
Find the x- and y-intercepts for each graph below. x-intercept: y-intercept: x-intercept: y-intercept:
Standard Form
Finding intercepts when given an equation. Step 1: Step 2: Step 3: Step 4:
5x – 2y = 10 X-interceptY-intercept
5x – 2y = 10
y = -x + 4 X-interceptY-intercept
y = -x + 4
y = ⅓x - 2 X-interceptY-intercept
y = ⅓x - 2
Try it: Find the x- and y-intercepts on the graph below. x-intercept:y-intercept:
Try it: -3x + 5y = 30 X-interceptY-intercept
-3x + 5y = 30
Try it: -3x – 7y = 21 X-interceptY-intercept
-3x – 7y = 21
Try it: 4y = 3x - 12 X-interceptY-intercept
4y = 3x - 12
Word Problem Trish can run the 200 m dash in 25 seconds. The function f(x) = 200 – 8x gives the distance remaining to be run after x seconds. Graph this function and find the intercepts. What does each intercept represent? x f(x)= 200-8x
Find the intercepts and graph the line ¼x = 2 - ⅓y
Write the given linear equations in standard form. 4.
Write the given linear equations in standard form. 5.
Write the given linear equations in standard form. 6.
Write the given linear equations in standard form. 7.
Write the given linear equations in standard form. 8.
Write the given linear equations in standard form. 9.
Write the given linear equations in standard form. 10.