Math, asked by myindu, 1 year ago

7. X-axis is axis of symmetry of parabola and passes through [-5, 10], find focus of the parabola [m,n].

Answers

Answered by maddulasaipavapavan
0
if y^2=4ax is parabola then given point satisfies this
=>100=-20a=>a=-5
focus is (a,0)=>(-5,0)
Answered by strovey
0
by using the general eq. y^2=4ax,we get a=-5 by substituting the given point (-5,10).
the focal point is (a,0)=(m,n)=(-5,0)
(if the parabola is to the ryt of y-axis)
[m,n]=(5,0) if the parabola is to the left of y-axis.
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