Math 1 Warm Up In the Practice Workbook

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

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

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

5 x – 2 y = 10 X-intercept Y-intercept

5 x – 2 y = 10

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

y = ⅓x - 2 X-intercept Y-intercept

Try it: Find the x- and y-intercepts on the graph below. x-intercept: y-intercept:

Try it: -3 x + 5 y = 30 X-intercept Y-intercept

-3 x + 5 y = 30

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

-3 x – 7 y = 21

Try it: 4 y = 3 x - 12 X-intercept Y-intercept

4 y = 3 x - 12

Word Problem Trish can run the 200 m dash in 25 seconds. The function f(x) = 200 – 8 x 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 -8 x 200 160 120 40 0

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.

Quiz Review • In the green workbook: –Page 70 #s 22 -24 –Page 72 #s 13, 22, 34 -36 –Page 74 #s 1 -3, 25 -26