Answer:
2
Explanation:
The slope of a perpendicular line is always the negative reciprocal.
For example, if we have a slope 2/3, the perpendicular lines slope will be -3/2.
If we have slope of -2, the perpendicular lines slope will be 1/2.
The line of the equation we have here is y= -1/2x+5
The y-intercept is 5, and we can find the slope with the 2 points.
To get from the top point to bottom point we go down 2, and to the right 4.
The slope formula is rise over run. The rise is -2, and the run is 4
Therefore the slope is -2/4, simplified is -1/2
To find the perpendicular lines slope we find the negative reciprocal of -1/2, which is 2/1, or 2.