Target: Locate and graph ordered pairs on a coordinate plane

1. In a bag full of marbles, there were 6 green, 2 red and 4 blue marbles. If a marble is chosen from the bag and then returned, find a)P(green) b)P(red) c)P(blue) d)P(not blue) 2. The ratio of girls to boys in Mr. D’s class is 12 : 13. What is the ratio of girls to all students in Mr. D’s class? 3. Solve for y in the similar figures.

xx-axis: ◦T◦T he horizontal # line yy-axis: ◦T◦T he vertical # line OOrigin: ◦w◦w here the two # lines cross each other QQuadrants: ◦T◦T he 4 quarters: ◦ I, II, III, & IV OOrdered Pair: ◦P◦P air = 2 ◦O◦O rder is x 1 st then y … (x,y)

x - axis y - axis – 1 – 2 –

x - axis y - axis Origin Quadrants IV III III

Graph each point and name the quadrant where it is located. a. A(4, 6)  Quadrant I b. B(3, -2)  Quadrant IV c. C(0, -8)  None, y-axis d. D(-5, 7)  Quadrant II A B C D 4 6

Chose the letter with the given ordered pair. a. (5, 0) UU b. (-4, 6) VV c. (-5, -2) RR

Chose the letter with the given ordered pair. d. (8, -7) TT e. (0, 3) SS f. (0, 0) PP

Use the table of values listed to the right a. Write the ordered pairs from the table using parentheses.  (-3, -6), (-2, -4), (-1, -2), (0, 0), (1, 2), (2, 4), (3, 6) b. Graph the ordered pairs on a coordinate plane.

Based on your graph, if the x-coordinate is 6, what would the y-coordinate be?  (6, 12)

1. Write the ordered pair for each point on the graph at right. a) A b) B c) C 2. Write the ordered pairs for each point in the table. Graph the points. A B C xy

What are the similarities and differences between graphing the point (3, 7) and the point (-3, -7)?

The Coordinate Plane Lesson 20

a. Make a scatter plot of the data. Label the x-axis “age” and the y-axis “height.” b. Is there are relationship between the age of a person and the person’s height?  Yes, as the age increases so does the height. c. Do you think this relationship will continue until someone is 70 years old? Explain.  No. People stop growing.