Exam 1

If f(x) =1/9-2 , what is f^-1(x)?

Which characteristic of a data set makes a linear regression model unreasonable?

If f(x) = 7 + 4x and g(x) =1/2x, what is the value of (f/g)(5)?

The table shows how far a distance runner has traveled since the race began. What is her average speed, in miles per hour, during the interval 0.75 to 1.00 hours?

Which graph represents the same relation as the table below? (-2,5), (0,1), (1,-1), (2,-3)

Given f(x)=17-x^2, what is the average rate of change in f(x) over the interval [1, 5]?

If f(x) and its inverse function,f^-1(x) , are both plotted on the same coordinate plane, where is their point of intersection?

If u(x) = x5 - x4 + x2 and v(x) = -x2, which expression is equivalent to (u/v)(x)?

Which of the following is an odd function?

Give f(x)=10-2x, find f(7).

Which graph represents an odd function?

If h(x) is the inverse of f(x), what is the value of h(f(x))?

If f(x) =X+9 and g(x)=-6, which describes the value of (f+g)(x)?

The cost, c, of a ham sandwich at a deli varies directly with the number of sandwiches, n. If c = $54 when n is 9, what is the cost of the sandwiches when n is 3?

If a(x) and b(x) are linear functions with one variable, which of the following expressions produces a quadratic function?

Which of the following is an even function?

To determine whether a graph of a relation is also a function, Shayla declares that the y-axis is a vertical line and counts the number of times that the graph intersects the y-axis. If the graph has exactly one y-intercept, Shayla concludes that the graph shows a function. In all other cases, she declares that it is not a function.

The scatterplot shows the distance (in feet) that a person was from a motion sensor during an experiment in math class. Use the labeled points to create a linear model. About what distance in feet (y) would a person be 8 seconds after the experiment begins?

If f(x) is an even function and (6, 8) is one the points on the graph of f(x), which reason explains why (-6, 8) must also be a point on the graph?

Which function has an inverse that is also a function?

he value, V(m), of a comic book m months after publication has a average rate of change of -0.04 between m = 36 and m = 60. Which statement must be true?

Which scatterplot has a correlation coefficient closest to r = -1?

Given f(x)=3x-1 and g(x)=2x-3, for which value of x does g(x)=f(2)?

The graphs of f(x) and g(x) are shown below. For what interval is the value of (f - g)(x) negative?