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Question 24
The temperature at 6:00 A. M. was 58° Fahrenheit. The
temperature increased at a constant rate of 3° Fahrenheit
every hour until 10:00 A. M. The equation below models t as
a function of h where 1 is the temperature and h is the
number of hours.
t = 58 + 3h
Which set represents the range of this function?
{h:0 Sh S 12)
{1:0 SIS 70)
{h:0 shs 4)
11:58 SIS 70)

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Step-by-step explanation:

cant see work, attached qork

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.