Question

Can you please help me with this urgently need help? It is grade 12 advance function question

Answer 1

Answer: The spin of the wheel by the contestant is an illustration of a sine function whose equation is y = -1.25sin(0.8x + 0.25)

Answer 2

The equation that represents the function will be; y = -1.25sin(0.8x) + 0.25

How does sine function works?

Suppose that we've got

$f(x) = a\sin(bx + c) + d$

Amplitude or maximum height from average motion horizontal axis

= a + d

Thus, the minimum low from horizontal axis is –a + d (sin ranges from -1 to 1, and multiplying a to it make it range from -a to a).

A sine function is represented as:

y = Asin(B(x+C)) + D

Now, Substitute the calculated values,

y = -1.25sin(0.8(x+C)) + 0.25

The horizontal shift (C) is 0.

So, the function will be;

y = -1.25sin(0.8x) + 0.25

Learn more about function;

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