The vertex of this parabola is at (3, -2). When the x-value is 4, the y-value is 3. What is the coefficient of the squared expression in the parabola's equation?
hello : the parabola's equation is : f(x) = a(x-3)²-2 the coefficient of the squared expression in the parabola's equation is : a but ; f(4) = 3 3 = a(4-3)²-2 a-2=3.....a=5 f(x) = 5(x-3)²-2
