Answer:
D. 15 cm
Step-by-step explanation:
9² + 12² = x²
81 + 144 = x²
225 = x²
√225 = x
15 = x
9/9 simply equals 1 there is no mixed number
-6 = y/5 + 4
Step 1: Subtract 4 from each side of the equation.
Step 2: Multiply each side by 5.
If you don't arrive at the solution y= -50 , then return to Step-1
and repeat the process, being on the lookout for your mistake.
The true statement is " The graph of function f is compressed horizontally by a scale factor of 4 to create the graph of function g " ⇒ answer C
Step-by-step explanation:
Let us revise the vertical and horizontal stretching
- A vertical stretching is the stretching of the graph away from the x-axis
- A vertical compression (or shrinking) is the squeezing of the graph toward the x-axis.
- f k > 1, the graph of y = k • f(x) is the graph of f(x) vertically stretched by multiplying each of its y-coordinates by k.
- If 0 < k < 1 (a fraction), the graph of y = k •f(x) is the graph of f(x) vertically shrunk (or compressed) by multiplying each of its y-coordinates by k.
-
A horizontal stretching is the stretching of the graph away from the y-axis
- A horizontal compression (or shrinking) is the squeezing of the graph toward the y-axis.
- If k > 1, the graph of y = f(k • x) is the graph of f(x) horizontally shrunk (or compressed) by dividing each of its x-coordinates by k.
- If 0 < k < 1 (a fraction), the graph of y = f(k • x) is the graph of f(x) horizontally stretched by dividing each of its x-coordinates by k.
∵ g(x) = f(4x)
∴ x is changed to 4x
∴ f(x) is stretched or compressed horizontally
∵ 4 > 1
∴ f(x) is compressed horizontally by scale factor of 4
The true statement is " The graph of function f is compressed horizontally by a scale factor of 4 to create the graph of function g "
Learn more:
You can learn more about vertical stretching in brainly.com/question/3568205
#LearnwithBrainly
Answer:
The percent increase is 100%
Step-by-step explanation:
The original cost of the video games is $25. They sell them for $50.
