6. Which equation represents: "Seven times the difference of a number and tenis
2 answers:
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Answer:
D)
Step-by-step explanation:
<u>Vertex Form of a Vertical Parabola:</u>
Vertex ->
Axis of Symmetry ->
Vertical Scale Factor ->
- To turn
into vertex form, we need to complete the square on the right side
- Therefore, if
, then
completes the square on the right side
- This becomes
- This means that our function in vertex form is
Therefore, the vertex of the graph is .
Answer: b. Only statement (ii) is correct.
Step-by-step explanation:
The given five-number summary of the ages of passengers on a cruise ship is listed below.
Min 1 20 Median 29
38 Max 80
Inter-quartile range =
- According to the 1.5(IQR) criterion for outliers : An data value is an outlier if it lies below
or above
.
Here ,
Since the minimum value> ( ∵ 1 > -7)
It means there is no value below , so there is no low -outlier.
⇒ Statement (i) "here is at least one passenger whose age is a low outlier. " is false.
But the maximum value > (∵ 85 > 65)
It means there are values above .
⇒Statement (ii) "There is at least one passenger whose age is a high outlier" is true.
Hence, the correct answer is b. Only statement (ii) is correct.