Algebra-2

The function that represents a decreasing exponential function with a y-intercept of 10 is y = 10(0.03)^x. The base 0.03 is between 0 and 1, indicating exponential decay. When x is zero, the equation simplifies to y = 10(0.03)⁰ = 10(1) = 10, which matches the given y-intercept. As x increases, the output values will decay exponentially.

Option A. y = (3)^x + 10

This equation represents exponential growth rather than exponential decay. The base 3 is greater than 1.