Mathematics 30-1 Quiz 1.4 - TS Numerical Response 2. The y-intercept of the graph of the exponential function f(x) - 7.5(0.98) is Hint: Identify the vertical stretch factor. 6. To solve the equation 16" = 64*-, equivalent powers with base 2 could be found, and then the exponents could be equated to give the equation A x +4 = 4x - 1 B. 4r+ 4 = 24x-1 C. 4(x + 4)= 6(4x-1) D. 8(x + 4) = 32(4x- 1) Hint: Use a common base. 7. State the characteristics of the graph of the function f(x) = hm". where b > 0 and 0 0, (x) 0. /(x) - R, decreasing from left to right C. x E R, f(x) > 0, increasing from left to right D. x E R, A(x) > 0. decreasing from left to right Hint: Determine whether this is an exponential growth or decay function. Next, determine how the b-value affects the range