You should be able to draw a graph when given a t-chart, or the equation
You should be able to make an x/y t-chart from a graph and from an equation
You should be able to write the equation when given either the graph or the t-chart.
Practice!
#1 here's the equation...Graph it! and fill in a t-chart
y = 3x + 1
#2 Here's the graph...what's the equation? and what's the t-chart?
#3 Here's the t-chart, graph it and write the equation.