C = 5/9 (f-32)
if f = 68

20

Step-by-step explanation:

C = 5/9 (f - 32)

since f = 68 and substitute it into the equation above

C = 5/9 ( 68 - 32)

C = 5/9 (36)

opening the bracket

C = 5/9 x 36

C = 180/9

C = 20

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

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im not sure