It looks like you're working with the equation of a line that passes through a point and has a specific slope.

The general form for the equation of a line is the point-slope form, which is written as:

$y - y_1 = m(x - x_1)$

Where:

• $m$ is the slope of the line.
• $(x_1, y_1)$ is a point the line passes through.

You provided:

• The slope $m = -2$
• The point through which the line passes is $(4, y_1)$ (though you haven't specified $y_1$).

So, the equation of the line would look like:

$y - y_1 = -2(x - 4)$

To complete this equation, we need the $y_1$-coordinate of the point. Could you provide that, or would you like me to proceed with a general expression?

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Would you like me to solve for a specific value of $y_1$? Let me know!