Question

a general formula for a parabola is (y^2=4px).

what is the value of (p) in the equation (y^2=-4x)?

(p=-4)
(p=-1)
(p=1)
(p=4)

Explanation:

Step1: Identify the standard equation

$$y^2 = 4px$$

Step2: Compare coefficients of \(x\)

$$4p = -4$$

Step3: Solve for \(p\)

$$p = -1$$

Answer:

\(P = -1\)