The function f(x) = -5x. The graph of g(x) is f(x) vertically compressed by a factor of 1/4 and reflected in the x-axis. What is the function rule for g(x)?
g(x) = 3x-2
g(x) = -3x-2
g(x) = 3x+2
g(x) = -3x+2
I need an explanationf or this in order to find the correct answer by myself.
2 answers
Also explain it to where I can understand this question myself.
If it is vertically compressed by a factor of 1/4, then all the y values are 1/4 as big: g(x) = 1/4 f(x)
If it is reflected in the x-axis, all the y values change sign: g(x) = -f(x)
So, you want g(x) = -1/4 f(x) = -5/4 x
None of those choices looks any good. Do you have the right problem?
You can find explanations in your text, or online using google or youtube, searching for graphs transformations
If it is reflected in the x-axis, all the y values change sign: g(x) = -f(x)
So, you want g(x) = -1/4 f(x) = -5/4 x
None of those choices looks any good. Do you have the right problem?
You can find explanations in your text, or online using google or youtube, searching for graphs transformations
1 answer