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How do I solve the transformations for these 2 problems?
2 Answers
- ?Lv 73 weeks ago
1)
k^x
2k^(x + 5) - 6
sqrt(abs(2 k^(x + 5) - 6)^2 + abs(k^x)^2)
2)
log x
log(-x + 3) + 2
sqrt(abs(log(3 - x) + 2)^2 + abs(log(x))^2)
- PuzzlingLv 71 month ago
You should learn to identify various transformations of a function:
Reflections:
vertical: -f(x), horizontal: f(-x)
Translations (shifts):
vertical: f(x) + k, horizontal: f(x + k)
Dilations:
vertical: k * f(x), horizontal f(kx)
PROBLEM 1:
Your original function is:
f(x) = k^x
Your transformed function is:
g(x) = 2 * f(x + 5) - 6
That's a horizontal dilation (compression) by a factor of 2 in width.
Then a shift of 5 units to the left.
And a shift of 6 units down.
PROBLEM 2:
Your original function is:
f(x) = log(x)
Your transformed function is:
g(x) = log(-x + 3) + 2
That's a horizontal reflection (across the y-axis).
There's a shift of 3 units to the left.
And a shift of 2 units up.