- OK Im getting this now. I was making two strange assumptions: 1) that the function represented in fig 1.36 as y=f(x) is f(x) = x^2. (it cant be because the vertex is well below the origin) and 2) I was thinking parabolas cant have vertexes below x-axis because of the x^2, but obviously they can be shifted, which is what fig 1.36 is and the whole point of all the examples.
- 3. The point P 1, 1 2 lies on the curve y x 1 x a. Use your calculator to find the slope of the secant line passing through P and the point Q x, x 1 x where x is each of the following
- The graph is increasing over the intervals (1, 3) and (4, 6). (b) Step 2 : A function is said to be "decreasing" when the y - value decreases as the x - value increases. Now find the intervals of decreasing by observing the graph : The graph is decreasing over the intervals (0, 1) and (3, 4). (c) Step 3 : Find the points where the function f(x ...
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- says the following function is an antiderivative: (3) F(x) = Z x 0 1 p 1+ √ t dt Discussion. You may feel that this doesn’t represent progress: the formula for the antiderivative is useless. But that’s not so: the function F(x) can be calculated by numerical integration. It can be programmed into a calculator so that when you press an x ...
- The table represents the function f(x). When f(x) = -3, what is x?-1. If f(x) = 2x²+1, what is f(x) when x = 3? 19. What is the inverse of the function f(x) = 2x + 1?

The growth factor is 1/6. (II) The value changes from 1 to 1/6, a decrease of 5/6. The fractional change is -5/6; the percent change is - 83 1/3%. (III) Given: the initial value (when x=0) is 21.6. (IV) F(x) = 21.6(1/6)^x Note: Use the fractional form of the growth factor because it is exact; a decimal would only be an approximation. For example, given a linear function represented by a table of values and a linear function represented by an algebraic expression, determine which function has the greater rate of change. 8.F.B.4 Construct a function to model a linear relationship between two quantities.

x f ()x f ′()x gx() gx′() 1 6 4 2 5 2 9 2 3 1 3 10 – 4 4 2 4 –1 3 6 7 The functions f and g are differentiable for all real numbers, and g is strictly increasing. The table above gives values of the functions and their first derivatives at selected values of x. The function h is given by hx f gx() ()=−()6. Let Xbe a continuous random variable with pdf f(x) = 2(1 x);0 x 1. If Y = 2X 1 nd the pdf of Y. Example 4 Let Xbe a continuous random variable with pdf f(x) = 3 2 x2; 21 x 1. If Y = X nd the pdf of Y. 11

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