Use a calculated to evaluate the function at the indicated v
Use a calculated to evaluate the function at the indicated values. Record your answer so three decimal, f (x) = 4\'; f(1/2), f(Squareroot 5), f(-2), f(0, 3) f (x) = 3^x-1; f(1/2), f(2 5), f(-1), f(1/4) g (x) = (1/3^x+1); g(1/2), g(Squareroot 2), f(-3.5), f(-1, 4) g (x) = (4/5^3x); g(-1/2), g(Squareroot 6), g(-3), g(4/3) Sketch the graph of the function by making a table of values Use a calculator if recovery. f(x) = 2\' g(x) = 8\' f(x) = (1/3) h(x) = (1, 1)\' g(x) = 3(1, 3)\' h(x) = 2(1/2)\' Graph both function on one set of axes. f(x) = 2^n and g(x) = 2^-x f(x) = 3^-4 and g(x) = (1/5)^n f(x) = 4\' and g(x) = 7\' f(x) = (3/4)\' and g(x) = 1.5\' Find the exponential function f(x) = a whose graph is given. Match the exponential function with one of the graphs labeled I or II. f(x) = 5^x + 1 f(x) = 5\' + 1
Solution
Let the general exponential function be :
y = a(b)^x
It passes through ( 0, 1) : 1 = a
y = b^x .It passes through (-3, 8)
So, 8 = b^-3
b^3 = 1/8 ; b = 1/2
So, y = (1/2)^x
