 Hi and welcome to our session. Let us discuss the following question. The question says the need of the exercises 7 to 12 find the equation of the parabola that satisfies the given conditions word x00 focus minus 2 0. Before solving this question we should know that if the parabola has word x at the origin, focus at point minus a0 and directrix x equals to plus a then equation of parabola is of the form pi squared equals to minus 4 ax. This is one of the standard equations of parabola. Now, keeping this in mind let us now begin to the solution. We are given that word x is 00 coordinates of focus are minus 2 0. Now clearly the focus minus 2 0 lies on the negative side of x axis. x axis is the axis of the parabola. This parabola to the left like in this figure is at the origin focus at point minus a0 and directrix x equals to plus a then equation of parabola is of the form y squared equals to minus 4 ax. Now here since the focus minus 2 0 is of the form a0 vertex at the origin required equation parabola is of the form y squared equals to minus 4 ax. Now here a is equal to 2 so by putting a as 2 in this equation we get y squared equals to minus 8 x. So required equation parabola y squared equals to minus 8 x. This is our required answer. So this completes the session. Bye and take care.