Graphing Using a T-chart

First Draw a T-chart

A t-chart is used to keep the work

organized.

Y = 3X + 7X Equation goes here

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First Draw a T-chart

Choose 3 x-values

You can pick any x-values that you want. There is not a wrong answer for this part. If your x-values are large, they will take more room to graph.

It is good to pick at least one negative number a positive number and zero.

Let X = -2, 0, 2

3(0) + 7

3(2) + 7

3(-2) + 7Y = 3X + 7

-2 0 2

X

Place each x-value into the equation

3(0) + 7 = 7 3(2) + 7 = 13

3(-2) + 7 = 1Y = 3X + 7

-2 0 2

X

Compute the y-values

3(0) + 7 = 7 3(2) + 7 = 13

3(-2) + 7 = 1Y = 3X + 7

-2 0 2

X

Match the x-value and the y-values

X - values

Y - values

Locate the Ordered Pairs

( -2 , 1 )

( 0 , 7 )

( 2 , 13 )

Plot these points on

your graph.

Graph on Coordinate Grid

(-2,1)

(0,7)

(2,13)

Notice our graph only goes to 10 ,but our

largest value is 13 on the y-axis.

Another solution would have been to

count by two’s on the graph.

Graph on Coordinate Grid

(-2,1)

(0,7)

(2,13)

Since my graph was not long enough, I chose to improvise and made my

point extend off the grid.

Connect Points

Congratulations!