Answer:
a)
Step-by-step explanation:
The y-intercept is when x = 0.
[tex]a^0=1[/tex], therefore when x = 0, y = 10
So the y-intercept is (0, 10)
The curve approaches the x-axis in quadrant 2, increases, passes through (0, 10) to quadrant 1 (see attached graph)