Math Exam 3
according to the video, what is the reason why we have been studying one-to-one functions so far in this section?
because every one-to-one function has an "inverse" function
Which of the following basic functions is equivalent to the piecewise-defined function?
f(x)=|x|
which of the following statements is not true?
"it is not possible" for a piece-wise
Identify the collection of three functions that are all even
"y=-3", y=x^2, and y=|x|
which of the following statements is true about the quadratic function f(x)=ax^2+bx+c?
a not ever equal to zero
which of the following statements is not true about revenue business model?
a revenue function can never be defined as a function
which of the following statements about projectile motion is not true?
an object thrown or shot vertically where t is the "k-coordinate"
which of the following statements most commonly describes the relationship between the quantity x of a product and price p?
as the quantity x increases, the price p tends to decrease
which of the following statements is not true about the characteristics of the graph of f(x)=ax^2+bx+c?
but never just one intercept
the shape of a graph of the polynomial function near the x-intercepts can be determined by
examining the multiplicity of the real zeros
which of the following statements is not true?
if a function f has an inverse function
which of the following statements is not true?
if f has an inverse function, then f-1(x)=1/f(x)
if f and g are inverse functions of one another, then which of the following is not necessarily true?
if f(1)=-b, then g(b)=-1.
which of the following is not true about the shape of a power function of the form f(x)=ax^n?
if n is odd, the shape of the graph resembles a "parabola"
for a quadratic function f(x)=ax^2+bx+c, what is not true about the domain, range, and the intercepts of the function?
one endpoint of the range
given the graph of a one-to-one function, -f, which of the following best describes how to sketch f-1?
reflect the graph of f about the line "y=x" to obtain the graph of f-1.
for the polynomial function y=f(x) below, choose the statements that most accurately describe the function
statements II, IV, and V
which of the following statements is not true about the polynomial function f(x)=an^x^n?
the numbers are positive real numbers
which is not true about the profit business model?
the revenue is always more than the cost
the right-hand behavior of the graph of a polynomial function of the form f(x)=anx^n.. can be determined by?
the sign of the leading coefficient an.
given the graph of the quadratic function with the vertex and the y-intercept clearly identified, which of the following statements is not true?
the value of b