(1) If y varies directly as x, and x = 3 and y = 9, solve for k

Write an equation that relates x & y

(2) If y varies inversely as x, and x = 3 and y = 12, Solve for k Write an equation that relates x & yIf y varies directly as x, and x = 3 and y = 9, solve for k

Write an equation that relates x & y

(3). If y varies inversely as x, and x = 3 and y = 12, Solve for k

Write an equation that relates x & y

Step-by-step explanation:

(1)

(2)

Question 3 is a repetition of Question 2.

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

)