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soldi70 [24.7K]
3 years ago
8

Karen says the functions f(×)=×+3 and g(×)= -×+7 intersect at x=2 is she correct

Mathematics
2 answers:
Gemiola [76]3 years ago
8 0

Answer:

yes

Step-by-step explanation:

Given the 2 equations

y = x + 3 → (1)

y = - x + 7 → (2)

Substitute y = x + 3 into (2)

x + 3 = - x + 7 ( add x to both sides )

2x + 3 = 7 ( subtract 3 from both sides )

2x = 4 ( divide both sides by 2 )

x = 2

Thus the functions intersect at x = 2

frez [133]3 years ago
7 0

Answer:

Yes.

Step-by-step explanation:

To find the point of intersection we solve the system:

y = x + 3

y = -x + 7       Subtract:

0 = 2x - 4

2x = 4

x = 2.

She is correct.

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