Exercise 1 Page 427

To graph the given exponential function, we will first make a table of values.

x	2^x	y=2^x
- 1	2^(- 1)	0.5
0	2^0	1
1	2^1	2
2	2^2	4

Let's now plot and connect the points ( - 1, 0.5), ( 0, 1), ( 1, 2), and ( 2, 4) with a smooth curve.

We can see in the graph that the range is all real numbers greater than zero. The domain of exponential functions is all real numbers. The y-intercept is the y-coordinate of the point at which the graph intersects the y-axis. We can see in the graph that its value is 1. Domain:& All real numbers Range:& y>0 y-intercept:& 1