Choose the function that corresponds to each graph below

Step-by-step explanation:

Given is a graph

On observing the graph we find the following

The graph is increasing throughout its domain

Domain is the set of all real numbers.

Range is only (2,infty)

y is not defined for y <=2

Passes through (2,5)

No x intercept

y intercept is at one point between 2 and 3.

The graph looks like transformation of an exponential graph.

y = a^x+2 makes range and shape somewhat same.

When x=0, y=3 thus making y intercept also match.

Since passes through (2,5) we have

5 = a^2+2

Or a = sq rt 3

So graph is

y = 3^(x/2)+2

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.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart