WorksheetsAlg 2 Topic 4 lesson 1
Total questions: 10
Worksheet time: 7mins
In the table of values, is y = kx or is y = k/x? (in other words, do you multiply all the x's by the same number to get y, or do you divide some number by all the x's to get the y's?) (a)
In this table of values, the y values can be found by dividing some number by the x values. For example, 34=3k , 1=4k , etc. What is the value of k?
k=34
k=4
k=1
k=15
Why can zero never be in the domain of an inverse variation?
The graph of an inverse variation function will never go through the point (0,0).
The graph of an inverse variation function will always be positive.
Division by zero is undefined.
Division by zero is always 0.
A student made a mistake in graphing y=x5 . Which two points on his graph are incorrect?
(-5, -1) and (5, 1)
(-2, -4) and (2, 4)
(-5, -1) and (5, 1)
(-5, -1) and (1, 5)
(-1, -5) and (1, 5)
S varies inversely as G. If S is 9 when G is 1.0, what is S when G is 2?
When G is 2, S = 4.5
When G is 2, S is 10
When G is 2, S is 18
When G is 2, S is 40.5
Suppose x and y vary inversely and x = 1 when y = 3. What is the value of y when x=20? Write your answer as an integer or a decimal.
(a)
The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 61 ampere when the resistance is 54432 ohms. What is the current when the resistance is 74088 ohms?
6.49 amps
496 amps
9072 amps
326,692 amps
512 amps
Which of the following graphs show an inverse relationship between x and y?
The length of time a car travels varies inversely as its speed. Let t=length of time, r=speed, and k= constant of variation. What equation relates t and r?
t=kr
r=kt
r=kt
r=tk
y varies inversely as x such that when x=12, y=9. Find y when x=27.
3
4
9
18
