Mathematics for IGCSE & O level - Sketching Curves (Section 1 - No. 24)
What is the horizontal asymptote of y = 2^(x+1) - 3?
y = 3
y = -3
x = 3
x = -3
Wyjaśnienie
The horizontal asymptote for an exponential function a^x is y = 0. The +1 is a shift, and the -3 shifts the graph down by 3, so y= -3.