Linear Functions

Evaluating 1

100

Evaulate Y=2X+1 using X = 3

Y = 7

200

Evaluate Y=3X using X=4

Y=12

300

Evaluate Y=5X-2 at X=0

Y=-2

400

Evaluate Y=12X using X=1

Y=12

500

Evaluate Y=-2X-1 using X=1

Y=-3

Graphing

100

The horizontal line goes in which direction?

Left to right

200

The vertical line goes in which direction?

Up and down

300

The origin is located where?

In the center (in the middle), etc. 

400

To start graphing, always do x or y first?

X

500

If I have (3,-2), which two directions will I move? (Left or right, then up or own)?

Right and then down.

Evaluating 2

100

Evaulate Y=7X using X = 7

Y=49

200

Evaulate Y=X+2 using X =3

Y=5

300

Evaulate Y=3X+4 using X =-2

Y=-2

400

Evaulate Y=4X using X = 2

Y=8

500

Evaluate Y=-X+1 using X=0

Y=1