Exercise 4 Page 170

We are asked to graph the given function on our calculator. Before we can make our graph, we have to write the equation in slope-intercept form. To graph the function we press $\boxed{\text{Y=}}$ on our calculator, and then we write the equation in one of the rows.

Next, by pressing $\boxed{\text{GRAPH}}$ the calculator will plot the graph.

We are now going to sketch this graph. To do that we need two points through which the graph passes. Let's pick two arbitrary $x\text{-}$values, and use the function rule to calculate the corresponding $y\text{-}$values.

$x$	$y=\text{-}3x+5$	$y$	$(x,y)$
$0$	$y=\text{-}3(0)+5$	$5$	$(0,5)$
$1$	$y=\text{-}3(1)+5$	$2$	$(1,2)$

Let's plot our two points in a diagram.

Next, we draw a line through the two points using a ruler and a pencil.

We now have a sketch of the graph.