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Please help quickly!
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The graphs of f(x) and g(x) are shown below:

graph of function f of x equals x squared minus x minus 12. Graph of function g of x equals 3.4 times x minus 6.6

What are the solutions to the equation f(x) = g(x)?

A. x = −1, 5.4
B. x = −3, 4
C. x = −1, 2
D. x = −10, 12

Respuesta :

Answer:

A) x = 5.4, x = -1

Step-by-step explanation:

Equations: f(x) = x² - x - 12, g(x) = 3.4x - 6.6

If f(x) = g(x)

Substitute: x² - x - 12 = 3.4x - 6.6

Subtract: x² - 4.4x - 5.4 = 0

Two numbers w/ sum of -4.4x and product of -5.4x²: -5.4x and 1x

Substitute: x² - 5.4x + x - 5.4 = 0

Factor: (x - 5.4)(x + 1) = 0

Solve: x = 5.4, x = -1

Answer:

A

Step-by-step explanation:

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