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Write an equation of the line satisfying the given choices. Perpendicular to x-2y=7; y-intercept (0,-8)
What is the equation of the line ?

Respuesta :

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to get slope of given line solve for y
x-2y=7
2y=x-7
y=½x-7/2

so the slope of the perpendicular line must be the negative inverse of this line. since this line has slope ½, the perpendicular line must have slope-2. plug known information into
y=mx+b
y=-2x-8

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