Step-by-step explanation:
the domain is the interval or set of all valid x-values for the function.
and the range is the interval or set of all valid y-values (functional result values) for the function.
so, we can see here that the function would create results for all x in (- infinity, + infinity). that is the domain.
now, what result values (y-values) are possible ?
we see, that the smallest functional value is y = -2.
and from there all y-values up to +infinity are possible.
so, the range is [-2, +infinity).
please consider the chosen brackets. the "[" means the value is included in the function, a "(" means that that particular interval end value is excluded. anything bigger or smaller might be valid but not this one value.
and infinity is not a value. hence they are not included in such intervals.
Answer:
20km = 6.5km + w
w = 20 km - 6.5 km
w = 13.5 km
Step-by-step explanation:
because 20km = present week
last week = w
The sentence says [Present Week] = 6.5 km MORE than [Last Week]
MORE mean "+"
[Present Week] = 6.5 km + [Last Week]
20 = 6.5 km + [Last Week]
20 = 6.5 + w
w = 20 - 6.5 = 13.5 km
Answer:
The mean will change because the total number of dot will increase and a bigger mean than the previous will occur. The new mean is 4. The old mean is 3.75.
Step-by-step explanation:
<span>There would be 9,000 tickets sold at the $12 price point and 25,000 tickets sold at the $6 price. (25,000 x 6 = $150,000. 9,000 x $12 = $108,000. $150,000 + $108,000 = $258,000).</span>
By looking at the graph we can see that f(x) increase by 1 (on the vertical axis . or y-axis ) from 2 to 3, over the interval 0 to 1 ( horizontal axis, or x-axis)
It increases by 2 over the interval 1 to 2.
by 4 over the interval 2 to 3.
And by 8 over the interval 3 to 4.
Therefore this exponential function grows by a factor of 2 (since it doubles every by every interval of 1)
