Find the equation of the images of the following lines when the reflection line is the x-axis: a. y = -x + 7 b. y = 4
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Aline passes through (1,-5) and(-3,7) write an equation for the line in point slope form rewrite the equation in slope intercept form

Ithink i know it but i want to be sure so can you me out ?

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.