Yes, 0.09 squared, or <span>0.0081, is a rational number.</span>
These problems really aren't hard just set them equal to each other and see if what they are saying is true. Are they equal? Do they both equal 0?
Because if you know where the line crosses the y axis (the y intercept) you can plot a point there. Then with slope you can count to your next plotted point. With the 2 points you can now draw your line.
if you don't have a Unit Circle, this is a good time to get one, you'd need it, you can find many online.
Check the picture below.