Question

The equation y = -9.4x + 509.60 gives the price y of a particular model of television c months after the television first became available. What is the real-world meaning of the y-intercept?

Answer 1

Answer: Choice D) Original price was about $509.60

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Step-by-step explanation:

The equation y = -9.4x + 509.60 is in the form y = mx+b, which is slope intercept form. In this case, we see that:

m = -9.4 is the slope

b = 509.60 is the y intercept

If we plugged x = 0 into the equation above, we would get y = 509.60

This means that after x = 0 months (aka the starting point), the price is about 509.60 dollars.