What is the value of x? In a triangle JKL, PQ is parallel line to JL. The length of JP is 3 and length of PK is x - 6. The length of QL is 5 and length of KQ is x.​​​​​ A. 3‾√ B. 21‾‾‾√ C. 9 D. 15

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.