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horrorfan [7]
4 years ago
10

Use the following functions: yf(x) = 3x - 7

Mathematics
1 answer:
igomit [66]4 years ago
5 0

Answer:

(f + g) (x) = 5x - 11

(f - g) (x) = x + 3

Step-by-step explanation:

f(x) = 3x - 7

g(x) = 2x - 4

to find ; (f + g) (x) and (f - g) (x)

now,

(f + g ) (x) =  f (x) + g(x)

                =  (3x - 7) +( 2x - 4 )

                =  3x - 7 + 2x - 4

                 =  5x - 11

again ,

(f - g ) (x) = f(x) - g(x)

                = (3x - 7) - (2x - 4)

                = 3x - 7 - 2x + 4

                =  x + 3

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