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eduard
3 years ago
7

A general formula for a parabola is y2 = 4px. What is the value of p in the equation y2 = –4x?

Mathematics
2 answers:
oee [108]3 years ago
3 0
Easy

compare
y²=4px vs
y²=-4x

y²=y²
4px=-4x
divide both sides by x
4p=-4
divide both sides by 4
p=-1




p=-1






lisov135 [29]3 years ago
3 0

Answer:

p= -1

Explanation:

We have been given parabola along positive side of x-axis with equation

y^2=4px\\\\and\\\\y^2=-4x

after equating the values of y^{2}  we will get

4px =-4x

Divide each term by x on both left hand side and right hand side  we will get

4p= -4

Now, divide each term by 4 on both left hand side and right hand side we will get the final result p=-1


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