Leyla /ley-la/ [2 sylls.] as a name for girls. Leyla's name origin is Arabic, and the meaning of Leyla is night beauty.
FYI: Different textbooks have different interpretations of the reference standard form of a quadratic function. Some say f (x) = ax2 + bx + c is standard form, while others say that f (x) = a(x - h)2 + k is standard form.
The quadratic function f(x) = a(x-h) 2 + k, a not equal to zero, is said to be in standard form. If a is positive, the graph opens upward, and if a is negative, then it opens downward. The line of symmetry is the vertical line x = h, and the vertex is the point (h,k).