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tiwaribianca475
29.06.2019 •
Mathematics
How is the graph of y=-1/3x related to its parent function y=1/x a. it is horizontally stretched by a factor of 3 and reflected over the x-axis. b. it is horizontally stretched by a factor of 3 and reflected over the y-axis. c. it is horizontally compressed by a factor of 3 and reflected over the x-axis. d. it is horizontally compressed by a factor of 3 and reflected over the y-axis.
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Ответ:
OPTION C.
Step-by-step explanation:
Some tranformations for a function f(x):
If
, and
, then the function is vertically compressed by a factor of "b".
If
, and
, then the function is vertically stretched by a factor of "b".
If
, and
, then the function is horizontally compressed by a factor of "b".
If
, and
, then the function is horizontally stretched by a factor of "b"
If
, then the function is reflected over the x-axis.
If
, then the function is reflected over the y-axis.
Given the function
and the parent function
, you can observe that:
The function
is the function
but horizontally compressed by a factor of 3 and reflected over the x-axis.
Ответ:
Hope it helps) and HAPPY NEW YEAR MY DEAR
Step-by-step explanation:
Let A be the number of cards Alan has
B be the number of cards Bill has
C be the number of cards Calvin has
Alan had 11 less than 2 1/2 times the number of cards bill has.
is 2.5
Alan is 2.5 of bill has minus 11
A=2.5B -11
Calvin has 1 more than 1 1/2 times the number of cards bill has.
is 1.5
Calvin is 1.5 of bill has plus 1
C=1.5B + 1
Alan and Calvin have the same number of cards
So A=C
WE plug in A and C equations and solve for B
2.5B -11 = 1.5B + 1 (subtract 1.5B on both sides)
1B -11 = 1 (Add 11 on both sides)
B = 12
If Alan and Calvin have the same number of cards, the number bill has is 12
The number of cards Alan and Calvin each have is 19
Total cards = 12 + 19 + 19 = 50
If Alan, bill, and Calvin have all the cards in the deck then the deck has 50 cards.