Exam 1: Functions and Their Graphs

arrow
  • Select Tags
search iconSearch Question
flashcardsStudy Flashcards
  • Select Tags

Select the graph of the function, and use the Horizontal Line Test to determine whether the function is one-to-one and so has an inverse function. ​ G(x) = |x + 5| - |x - 5| ​

(Multiple Choice)
4.8/5
(30)

Find the average rate of change of the function from x1 = 0 to x2 = 3. f(x)=2x+12f ( x ) = - 2 x + 12

(Multiple Choice)
4.9/5
(31)

Show that the points form the vertices of the indicated polygon. Right triangle: (6, 2), (3, 4), (-3, -5)

(Multiple Choice)
4.9/5
(36)

A pebble is dropped into a calm pond, causing ripples in the form of concentric circles.The radius (in feet) of the outer ripple is r(t)=0.2tr ( t ) = 0.2 t , where t is the time in seconds after the pebble strikes the water.The area of the circle is given by the function A(r)=πr2A ( r ) = \pi r ^ { 2 } .Find and interpret (Ar)(t)( A \circ r ) ( t ) .

(Multiple Choice)
4.8/5
(42)

Restrict the domain of the function f so that the function is one-to-one and has an inverse function.Then find the inverse function f-1.State the domains and ranges of f and f-1. F(x) = -6x2 + 2

(Multiple Choice)
4.8/5
(33)

When buying gasoline, you notice that 16 gallons of gasoline is approximately the same amount of gasoline as 51 liters.Use this information to find a linear model that relates liters y to gallons x.Then use the model to find the numbers of liters in 25 gallons and 45 gallons. (Round your answer to one decimal place.)

(Multiple Choice)
4.8/5
(29)

The following is the slope of line representing annual sale y in term of time x in year.Use the slope to interpret any change in annual sales for a one-year increase in time. ​ The line has a slope of m = -20. ​

(Multiple Choice)
4.9/5
(35)

A quarterback is standing in the middle of the field 41 yards from his goal line.He passes the ball to a player 8 yards to his left on the 26 yard line.How long was the pass? ​

(Multiple Choice)
4.9/5
(35)

Evaluate the function at the specified value of the independent variable and simplify. g(s) = 3s + 1 G(-18)

(Multiple Choice)
4.9/5
(36)

Find a mathematical model representing the statement.(Determine the constant of proportionality.) V varies jointly as p and q and inversely as the square of s.(v = 1.4 when p = 4.4, q = 7.3 and s = 1.8.)

(Multiple Choice)
4.8/5
(40)

Use algebraic tests to check the following for symmetry with respect to the axes and the origin. y=4x20x103y = 4 x ^ { 20 } - x ^ { 10 } - 3

(Multiple Choice)
4.8/5
(31)

Evaluate the indicated function for f(x)=x27f ( x ) = x ^ { 2 } - 7 and g(x)=x+8g ( x ) = x + 8 . (fg)(t+8)( f - g ) ( t + 8 )

(Multiple Choice)
4.9/5
(30)

Evaluate the function f(x) = [[x]] for x = 9.2. ​

(Multiple Choice)
4.9/5
(30)

Use the functions given by f(x) = x + 2 and g(x) = 2x - 5 to find (f º g)-1.

(Multiple Choice)
4.8/5
(24)

Select the correct graph of the given function. f(x)=x66f ( x ) = x ^ { 6 } - 6

(Multiple Choice)
4.8/5
(30)

Select the correct graph for the given function. f(x)=6(x+3)31f ( x ) = 6 ( x + 3 ) ^ { 3 } - 1

(Multiple Choice)
4.9/5
(32)

A force of 270 newtons stretches a spring 0.18 meter.What force is required to stretch the spring 0.19 meter ?

(Multiple Choice)
4.8/5
(30)

Find the domain of the function. g(p)=81p2g ( p ) = \sqrt { 81 - p ^ { 2 } }

(Multiple Choice)
4.9/5
(39)

Find (f + g)(x). f(x)=x+4,g(x)=x4f ( x ) = x + 4 , g ( x ) = x - 4

(Multiple Choice)
4.8/5
(29)

Find the slope of the line passing through the pair of points. P(19,2);Q(2,19)\mathrm { P } ( 19 , \sqrt { 2 } ) ; \mathrm { Q } ( \sqrt { 2 } , 19 )

(Multiple Choice)
4.9/5
(23)
Showing 161 - 180 of 513
close modal

Filters

  • Essay(0)
  • Multiple Choice(0)
  • Short Answer(0)
  • True False(0)
  • Matching(0)