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

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Presentation transcript:

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

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

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) What is the equation of the line?

Now you Plot the points (-2,5), (0,5), (3,5) 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?

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

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

Graph x = -2 (-2,4) (-2,-3)

Graph x = -1

Graph y = 2

Graph y = 4

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

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

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)

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

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

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

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

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

Properties of y=k Horizontal line Parallel to x axis Slope is zero Examples: y=4, y=-2, y=1

Properties of x=h vertical line Parallel to y axis Slope is undefined Examples: x=4, x=-2, x=1