Math 1 Warm Up In the Practice Workbook… Practice 6-2 (p. 72)

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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.

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.

Using Intercepts

key terms Y-intercept: ________________________________________ __________________________________________________ X-intercept: ________________________________________

Find the x- and y-intercepts for each graph below. x-intercept: y-intercept: x-intercept: y-intercept:

Finding intercepts when given an equation. Step 1: Step 2: Step 3: Step 4:

5x – 2y = 10 X-intercept Y-intercept

5x – 2y = 10

y = -x + 4 X-intercept Y-intercept

y = -x + 4

y = ⅓x - 2 X-intercept Y-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-intercept Y-intercept

-3x + 5y = 30

Try it: -3x – 7y = 21 X-intercept Y-intercept

-3x – 7y = 21

Try it: 4y = 3x - 12 X-intercept Y-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 00 5 10 20 25 f(x)= 200-8x 200 160 120 40

Find the intercepts and graph the line ¼x = 2 - ⅓y

Warm-Up 11/29/2012 Write the following equations in standard form: 1. 2. 3. 4.

In the green workbook: Quiz Review Page 70 #s 22-24