Answer:
The y-intercept is: (0, 15)
The graph is also attached below.
Step-by-step explanation:
Given

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<u>Determining the y-intercept</u>
As we know that y-intercept is the point on a graph where x = 0
so
Putting x = 0 in the function





Therefore, the y-intercept is: (0, 15)
The graph is also attached below.