bdsfs

1.  News & Notes
 Warm-Up(4)
 Review Functions
& Intercepts
 New Formula: The
Slope of a line
 Work on CW 3.5
February 12, 2016
Today:

2. Our 1st Coordinate Plane Test :
Thursday, Feb. 17;
The Test will include the following:
 Functions, Domain, Range
 Ordered Pair Solutions
 Standard Form of a Line
 Slope of a Line
2nd Khan AcademyAssignment for the quarter
due no later than midnight Sunday
Progress Reports Approaching Fast

3. 1. A 72 ft. pipe is cut into two pieces of lengths in a 5:7
ratio. What are the lengths of the two pieces?
2. The cost of a student meal at Shirley’s has increased
from $5.50 to $6.75. What is the percent of increase?
4. If g gallons of gas cost d dollars, what is the
price per gallon?
3. Jack is x years old. Dudley is one more than three
times as old as Jack. How old is Dudley?
5. Write two equations in standard form that are
equivalent to x – y = 3.

4. Review:
functions, Intercepts

5. Write the equation of the line. What is the equation in
standard form?

6. 1. (3, 0)
2. (8, 0)
3. (0, -4)
4. (0, -6)
1. (-1, 0)
2. (-8, 0)
3. (0, 2)
4. (0, 4)

7. What is the y-intercept
of x = 3?
1. (3, 0)
2. (-3, 0)
3. (0, 3)
4. None

8. Writing & Interpreting Graphs:
Graph paper out, pls.

9. Use time & distance from parent as the variables.
Draw the following graph over a 10 second time frame.
Writing & Interpreting Graphs

10. Liquid is poured into each of the three glasses below. Match
the graph showing the liquid rising with the correct glass.
B A C

11. Graph Joe’s activities in preparing and taking a bath.
What are the independent and dependent variables?

12. Writing & Interpreting Graphs
Jane drove to work at 45 mph. She pulled over at a gas station
and spent 15 minutes looking for her purse. She then raced
home at 65 mph to find her purse. Graph her distance from
home over time.
Gas Station: y value
remains constant

13. Draw the graph: Hugo was standing 9 feet from door. He walked
away, and after 3 seconds was 21 ft. away. What are the variables?
Mark the coordinates of all points plotted.
One of the points will be an intercept. Which one? Mark the coodinates.