Question

graph the exponential model y=2(0.5)^x which point lies on the graph?
a. (0,2)
b. (-4,1)
c. (2,5)
d. (1,-1)

Answer 1

Here is the graph.

Answer 2

well on the graph, 0,2 is there. however the equation doesnt make sense. either that or the graph doesnt

Answer 3

The equation makes sense. Remember that anytime you have a number with an exponent of zero, it's 1.

\[1^{0}=1\]\[2^{^{0}}=1\]\[a ^{0}=1\] So using the equation given, \[y=2(0.5)^{0}\]\[0.5^{0}=1\]\[2*1=2\]So y = 2 for x=0