There were two films at a cinema. one of the movies was presented in a large room and the other one was 4) in a smaller room. the movie in the larger room was watched by a total of 3562 people the film in the smaller room was watched by 1671 people. how many people saw the movie in the larger room?

answer:

(-8,7)

explanation:

we know that  

f

(

−

3

)

=

7

therefore, if we wish to get the output as 7, in the function, we need to have our input to be -3.

looking at the function  

f

(

x

+

5

)

, what should the value of x be, such that the input in the function becomes 7?

we simply equate the terms,

x

+

5

=

−

3

x

=

−

8

thus, the point on the new function would be  

(

−

8

,

7

)