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This problem trains for: SAT-I, AMC-8, GMAT.

The linear function:

decreases by 5 when the argument x increases by 8.

If shifted by 3 in the negative direction of the y-axis, it passes through the origin of the system of coordinates.

What is the expression of the function?

The slope of the function is:

The y-intercept is:

The expression of the function is: