If function f is vertically stretched by a factor of 2 to give function g, which of the following functions represents function
g?
f(x) = 3|x| + 5
A. g(x) = 6|x| + 10
B. g(x) = 3|x + 2| + 5
C. g(x) = 3|x| + 7
D. g(x) = 3|2x| + 5
2 answers:
Answer:
A. g(x) = 6|x| +10
Step-by-step explanation:
The parent function is given as:
f(x) = 3|x| + 5
Applying transformation:
function f is vertically stretched by a factor of 2 to give function g.
To stretch a function vertically we multiply the function by the factor:
2*f(x) = 2[3|x| + 5]
g(x) = 2*3|x| + 2*5
g(x) = 5|x| + 10
Answer: Option A.
Step-by-step explanation:
There are some transformations for a function f(x).
One of the transformations is:
If
and
, then the function is stretched vertically by a factor of "k".
Therefore, if the function provided
is vertically stretched by a factor or 2, then the transformation is the following:

Applying Disitributive property to simplify, we get that the function g(x) is:

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