Explanation:
To find the y-intercept of a function, we need to set the value of x to 0 and calculate the corresponding value of y.
For the given function f(x) = -6(2)^x, when x = 0:
f(0) = -6(2)^0
f(0) = -6(1)
f(0) = -6
So, the y-intercept is at the point (0, -6).
The correct choice is:
O b. (0,-6)