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Slide 1:

Bell Ringer #102 Objective Be able to find the surface area of cylinders and prisms

Lesson 82 • Graphing Equations Using Intercepts:

Lesson 82 • Graphing Equations Using Intercepts

Slide 3:

Using two intercepts to graph Graph: 3x + 4y = -12 x intercept ( , 0 ) let y = 0 and solve for x y intercept ( 0 , ) let x = 0 and solve for y 3x + 4(0) = -12 3x = -12 x = -12 3 = - 4 -4 3(0) + 4y = -12 4y = -12 y = -12 4 = - 3 -3

Slide 4:

After finding the two intercepts, plot both points on the graph and draw a line through them x intercept ( -4 , 0 ) y intercept ( 0 , -3 )

Slide 5:

Graph both lines on the same graph: 3x – 2y = 6 and 5x + 2y = 10 Line 1: x int. ( , 0 ) 2 y int. ( 0 , ) -3 Line 2: x int. ( , 0 ) 2 y int. ( 0 , ) 5

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