Answer
(a) See the image below
(b) The slope represents rate of change of his production cost with respect to toaster ovens produced per month.
$y$-intercept represents his production cost if he produces no toaster oven.
Work Step by Step
(a) We can simply input at least $2$ any $x$ value to the equation and connect the points. It will be graph of this linear equation. But note $x$ is amount of toasters, so it cannot be negative ($x\geq0$)
See the image above
(b) The slope represents rate of change of his production cost with respect to toaster ovens produced per month.
$y$-intercept represents his production cost if he produces no toaster oven.
