note that gradient =  at x = a
 at x = a
calculate  for each pair of functions and compare gradient
 for each pair of functions and compare gradient
(a)
 = 2x and
 = 2x and  = - 1
 = - 1
at x = 4 : gradient = 8 and - 1 : 8 > - 1
(b)
 = 2x + 3 and
 = 2x + 3 and  = - 2
 = - 2
at x = 2 : gradient = 7 and - 2 and 7 > - 2
(c)
 = 4x + 13 and
 = 4x + 13 and  = 2
 = 2
at x = - 7 : gradient = - 15 and 2 and 2 > - 15
(d)
 = 6x - 5 and
 = 6x - 5 and  = 2x - 2
 = 2x - 2
at x = - 1 : gradient = - 11 and - 4 and - 4 > - 11
(e)
y = √x = 
 = 1/(2√x) and
 = 1/(2√x) and  = 2
 = 2
at x = 9 : gradient =  and 2 and 2 >
 and 2 and 2 > 
 
        
             
        
        
        
You would have more than $102.
Earning 2% a year in interest would get you $2 in interest the very first year:
100(0.02) = 2
Adding this to the amount in the account, you would have 100+2 = 102 after the first year.
        
             
        
        
        
A is not linear A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 
for each of its variables. In this case, the degree of variable 
Not Linear
        
             
        
        
        
2 hours = 45 pages
1 hour = 45 ÷ 2 = 22.5 pages
12 hours = 22.5 x 12 = 270 pages
Answer; 270 pages
        
             
        
        
        
The range of a function is the set of possible values that can be obtained from the dependent variable. The range of the function is: 
Given that:


Let the number of months be t. So, the function C(t) is calculated as follows:



The range is calculated as follows:
The smallest possible value of t is 0 i.e. when no monthly subscription is done.
So, we have:

And the highest is  i.e. for a large value of t
 i.e. for a large value of t
So, we have:

Hence, the range of the function is:

Read more about range of functions at:
brainly.com/question/13824428