Answer:
Step-by-step explanation:
Wow, pretty harsh. Report someone who makes a fair effort but makes a mistake. Better report yourself then, because you obviously cannot do it yourself or you wouldn't be asking.
Coordinates of the vertex seem to be (-2, 2)
It's the point where the slope of the curve is zero.
Cannot tell for certain unless we have the equation of the curve.
Using translation concepts, it is found that the new function was reflected over the x-axis and vertically compressed by a factor of 3.
<h3>What is a translation?</h3>
A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.
The functions are given as follows:
- Parent:
.
- Translated:
.
The translated function was multiplied by -1/3, hence it was reflected over the x-axis(multiplication by negative number) and vertically compressed by a factor of 3(fraction of 1/3).
More can be learned about translation concepts at brainly.com/question/4521517
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Answer: t = 6 s
Step-by-step explanation:
When Rose hit the water, the height of the jump is 0, so: h(t) = 0.
Resolving it, we have:
-16t² + 16t + 480 = 0
To simplify the second degree equation, divided it by 16:
-t² + t + 30 = 0
Now, solve the equation using Bhaskara:
Δ = 1² - 4. (-1) . 30
Δ = 1 + 120
Δ = 121
t = 
t₁ =
= - 5
t₂ =
= 6
Since time can be negative, it took t = 6s for Rose to hit the water.