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4x + 5y = -10's perpendicular slope is -4/5. To find the slope, we can rearrange the equation to make it into the slope-intercept form.
To find the perpendicular slope of 4x + 5y = -10, we need to use the slope-intercept formula, which is y = mx + b.
To find the slope, we can rearrange the equation to make it into the slope-intercept form:
4x + 5y = -10
=> 5y = -4x - 10
=> y = -(4/5)x - 10/5
=> Slope = -(4/5)
Therefore, the perpendicular slope of 4x + 5y = -10 is -4/5
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