2 answers:
Answer:
B. g(x)=5f(x)
Step-by-step explanation:
The graph of function g is a vertical stretch of the graph of function f by a factor of 5. Let analyse all the possible answers:
- For C and D are the same transformation and they are only be transformed horizontally and be compressed over the x-axis.
When 0 < |a| < 1 (when a is between 0 and 1), the function is compressed vertically by a dilation factor of |a|.
When |a| > 1 (when a is greater than 1), the function is stretched vertically by a dilation factor of |a|.
Lastly, when a is negative, the function is reflected in the x-axis and then it is stretched or compressed vertically by a dilation factor of |a|.
- For A, the parameter 0 < a =1/5 < 1, so it will make the original function compress vertically over the y-axis
- For B, the parameter a= 5> 0, so it will make the original function stretch vertically over the y-axis
Hence, we choose B
Answer:
B
Step-by-step explanation:
For answer A it is stretching the graph of function f by a factor of 15.
For answer C and D it is changing the function itself and that is not what the question is asking.
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Answer:
C. 1 / (a(a - 1))
Step-by-step explanation:
View Image
Just know that:
n! = n(n-1)!
= n(n-1)(n-2)!
= n(n-1)(n-2)(n-3)!
= ...
Answer:
Step-by-step explanation:
So we have the expression:
Combine like terms:
Add:
And we're done!
One ticket is worth 200 dollars
The answer is
x + y = 7
6.50x + 3.50y = 33.50
x - the number of adult tickets
y - the number of child tickets
<span>Group of 7 people: x + y = 7
</span> 6.50 adults and 3.50 for child ticket cost <span>33.50: 6.50x + 3.50y = 33.50
So, we have two equations:
</span>x + y = 7
6.50x + 3.50y = 33.50
