Bellwork 10/25 Do page 165 (#23 & 24) Make your own graph and try to be neat. Amount Year

Page 171 (1-14 & 17,18) 1.) c = 12 2.) x = 80 3.) y = 36 4.) m = -4 8.) r = 3/10 9.) x = 1.03 10.) y = -7 11.) m= 1.56 12.) x=1.98

Page 171 (1-14 & 17,18) 13.) r = c/2 14.) h = S - 2r2 2r 17.) 4.9%

Page 171 (1-14 & 17,18) 18.) 45 40 35 30 25 45 50 55 60 65 70 75 80

Objective To be able to recognize Horizontal and Vertical lines on the coordinate plane.

Plot the points (3,-3), (3,-2), (3,-1), (3,0),(3,1), (3,2), (3,3) What do you notice about all the x values that were plotted? The Equation of the line is x = 3 Y X

Now you Plot the points (1,-3), (1,-2), (1,-1), (1,0),(1,1), (1,2), (1,3) What is the equation of the line? The Equation of the line is x = 1 Y X

What did you notice about all the x values When the x values are the same, what does the equation begin with?

Plot the points (-2,2), (0,2), (3,2) y = 2 Y X What is the equation of the line?

Now you Plot the points (-2,5), (0,5), (3,5) X What is the equation of the line?

What did you notice about all the y values When the y values are the same, what does the equation begin with?

(4,-2) Graph the lines x = 4 & y = -2 What is the intersection pt. of the 2 lines? Y X

Write equations for the horizontal line and the vertical line that pass through the point (-1, 4) x = -1 y = 4

x = -1 & y = 4 y = 4 Y X x = -1

Classwork Do worksheet 4.1 homework Study for chapter 3 TEST

31.) x = -2 Y (-2,4) X (-2,-3)

32.) x = -1 Y X

33.) y = 2 Y X

34.) y = 4 Y X

Bellwork 10/27 Solve: 1.) 12 = x -2 2.) 7x = 42 3.) 9x + 7(x + 1) = 17 - 4x 4.) Solve for x: 4x - 3y = 2

Bellwork 10/27 Solve: 1.) 12 = x -2 2.) 7x = 42 x = 14 x = 6

Bellwork 10/27 Solve: 3.) 9x + 7(x + 1) = 17 - 4x 4.) Solve for x: 4x - 3y = 2 x = 1/2 x = 1/4(2 + 3y)

Write equations for the horizontal line and the vertical line that pass through the point (-1, 4) and then plot both lines x = -1 y = 4

The intersection is at (-1,4) x = -1 & y = 4 y = 4 Y The intersection is at (-1,4) X x = -1

Write the equations of the line 1.) (3,5), (3,-1), (3,0), (3,-2) 2.) (5,5), (5,-1), (5,0), (5,-2) 3.) (3,5), (-1,5), (0,5), (1,5) 4.) (3,-2), (-1,-2),(0,-2),(1,-2)

Write the equations of the line 1.) (3,5), (3,-1), (3,0), (3,-2) 2.) (5,5), (5,-1), (5,0), (5,-2) x = 3 x = 5

Write the equations of the line 3.) (3,5), (-1,5), (0,5), (1,5) 4.) (3,-2), (-1,-2),(0,-2),(1,-2) y = 5 y = -2

Write the Equation of the line Passes thru the point 4 on the x-axis x = 4 Y X

Write the Equation of the line Passes thru the point -2 on the x-axis x = -2 Y X

Write the Equation of the line y = 2 Y X Passes thru the point 2 on the y-axis

Write the Equation of the line Passes thru the point -5 on the y-axis Y X y = -5

Classwork Do Worksheet 4.1 Homework Page 180 (1-30)

How could you describe your Relation? A group of People in the same family: Example: aunt, uncle, cousin, brother, sister, parents

What is a Relation in Algebra? A group of ordered Pairs Example: {(3,2) , (-1,4) , (-3,-6)}

Functions Relations are functions if the 1st number of the ordered pair is different from all the others.

Find the Functions 1.) (1,1) (3,2) (-6,1) 1.) Function 2.) (3,1) (3,2) (-6,1) 2.) Not a Function 3.) (5,1) (-3,-2) (-4,2) 3.) Function

Find the Functions 4.) (4,1) (3,2) (-1,1) 4.) Function 5.) (1,1) (-6,2) (-6,1) 5.) Not a Function 6.) (1,3) (3,2) (3,1) 6.) Not a Function

Linear Functions Linear Functions are equations that can be written in the form: y = mx + b So….. y = 3x + 2 is a linear function y = 3x2 + 2 is not a linear function

Apply the Vertical line to test for functions X

Apply the Vertical line to test for functions X

Apply the Vertical line to test for functions X

Apply the Vertical line to test for functions X

Apply the Vertical line to test for functions X