N
an average of 78 reports with bird counts were turned in each day in june. an average of 81 were turned in
each day in july
vie
how many reports were turned in for both months? (hint: there are 30 days in june and 31 days in july)
exam
step by s
part 1 out of 3
first, enter the problem for june. input the number of days in june first.
the problem for june is
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We know the following facts:
1. Linear relationships are functions EXCEPT for vertical lines.
2. The inverse of a linear function is also linear (therefore are functions) EXCEPT for constant functions, whose inverse is a vertical line.
3. All polynomials (including quadratic functions) are functions.
4. The inverse of even-degree polynomials are never functions (because the end-behaviours are either both positive or both negative).

From this we can conclude that
a) the inverse of a linear function is always a function.
    FALSE:  a (linear) constant function has a vertical line as the inverse, so  not always true.
b) the inverse of a quadratic function is always a function.
    FALSE: inverse of of a quadratic function is NEVER a function
c) the inverse of a linear function is not a function.
    FALSE: not always true, so false.
d) the inverse of a quadratic function is not a function.
    TRUE: as explained in note (4) above.