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Wewaii [24]
3 years ago
5

Find the intersection point for the following liner function f(x)= 2x+3 g(x)=-4x-27

Mathematics
1 answer:
Leona [35]3 years ago
5 0

Answer:

( -5,-7)

Step-by-step explanation:

f(x)= 2x+3 g(x)=-4x-27

Set the two functions equal

2x+3 = -4x-27

Add 4x to each side

2x+3+4x = -4x-27+4x

6x+3 = -27

Subtract 3

6x+3 - 3 = -27-3

6x = -30

Divide each side by 6

6x/6 = -30/6

x =-5

Now we need to find the output

f(-5) = 2(-5) +3 = -10+3 = -7

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Step 1 ) Move all terms right side of the equation.

\displaystyle\ x^{2} + 6x = -18

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Since the options only provide one of the answer we found, the answer is...

\displaystyle\ x = -3 - 3i

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