1. Do Now “Wake-Up Call” (TFK 12/19/14) “The NASA spacecraft New Horizons sent a message to Earth” 1.“Talk about a long-distance call! On December 6, the NASA spacecraft New Horizons sent a message to Earth—from 2.9 billion miles away.” Write 2.9 billion in standard form. 2.The radio signal from New Horizons traveled at the speed of light: 186 thousand miles per second. Write in standard form. 3.“It took the message four hours and 26 minutes to reach Earth.” Convert to all minutes. 4.“New Horizons has been traveling through space for nine years. It has spent about two-thirds of that time in hibernation. The craft is made to sleep for long periods to prevent its systems from wearing down.” How much time has the vehicle been in hibernation? 5.“New Horizons is currently about 162 million miles from Pluto. It will collect images and data about the dwarf planet and its surrounding moons. New Horizons will come closest to Pluto on July 14, 2015.” Write 162 million in standard form.

2. 1/26/2015 7-1 E Functions and Equations

3. linear function: a function whose graph is a line

4. Ex. 1 Write an equation to represent the function shown in the table. y = 12n (1,12) (2,24) (3,36)…

5. Ex. 2 Graph y = x + 2. Make a table of ordered pairs. Select any three values for x. Substitute these values for x to find y.

6. Graph each ordered pair. Draw a line through each point.

7. Graph y = 2x + 1. A. B. C. D. A. B.

8. Ex. 3 Melina constructed the graph below to show the cost to rent a canoe after several hours. Make a function table for the input-output values. The three input values are 1, 2, and 3. The corresponding output values are 25, 30, and 35. The equation is y = 5x + 20.

9. Exit Ticket. Graph each question.

10. Pg. 385 #1-24 Evens Study Quiz Wednesday