GRAPHING LINEAR EQUATIONSLavender

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FAMILIAR WITH A 4 QUADRANT GRID?

Draw a 4 quadrant grid – Number each axis from -5 to 5 DO NOT draw in the grid lines

PLOTTING COORDINATES

Coordinates are the points on a line ( X , Y )

X meaning X axis Y meaning Y axis

Plot the coordinates ( 5 , -3 ) on the grid you labeled.

( 5 , -3 )

PLOT ALL OF THE FOLLOWING COORDINATES

On the grid you previously labeled ( 3 , 3 ) ( 2 , -5 ) ( 1 , 0 ) ( -4 , -2 ) ( -1 , 1 ) ( -2 , 5 ) ( 4 , -1 )

GRAPHING FROM A TABLE

X Y

0 -1

1 -2

2 -3

3 -4

GRAPHING FROM A TABLE

X Y

-2 1

-1 0

0 -1

1 -2

GRAPHING FROM A TABLE

X Y

-5 -1

-4 1

-3 3

-2 5

WARM-UP

SOLVE the following equations for X… X − 10 = −3

X/5 = 2

X − 7 = −1

−40 = −5X

418 = −22a

SOLVE FOR X WHEN Y=….

Y = 3 x + 9 = y x = _________

Y = 10 2x = y x = _________

Y = 7 x/3 = y x = _________

Y = 2 32 – x = y x = _________

Y = 100 x2 = y x = _________

GRAPHING FROM T-CHARTS & EQUATIONS

Equation: Y = X

X Y

-4

-2

0

2

4

GRAPHING FROM T-CHARTS & EQUATIONS

Equation: Y = 3X - 2

X Y

-2

-1

0

1

2

GRAPHING FROM T-CHARTS & EQUATIONS

Equation: Y = -2X + 4

X Y

-4

-2

0

2

4

GRAPHING FROM T-CHARTS & EQUATIONS – INPUTS NOT GIVEN

Equation: Y = 3X

X Y

GRAPHING FROM T-CHARTS & EQUATIONS – INPUTS NOT GIVEN

Equation: Y = X - 2

X Y

GRAPHING FROM T-CHARTS & EQUATIONS – INPUTS NOT GIVEN

Equation: Y = -X + 4

X Y