In general, the y-intercept of the function f(x) = a bx is the point

(0,a)

Explanation:
The general form of the linear equation is:
y = bx + a

The y-intercept is the value of the y that occurs at x = 0.
Substitute with x = 0 in the equation:
y = b(0) + a
y = a

This means that:
at x = 0 > y = a

Therefore, the coordinate of the y-intercept would be (0,a)

Hope this helps :)

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