Risk factors and causes. The retina is the layer of tissue that lines the inside of the eye. It is light sensitive and its function is to send visual signals to the brain, through the optic nerve. Eye trauma can cause a detached retina. Retinal detachment happens when this layer is pulled from its normal position.
Completing the Square: Finding the Vertex (page 1 of 2) The vertex form of a quadratic is given by. y = a(x â h)2 + k, where (h, k) is the vertex. The a in the vertex form is the same a as. in y = ax2 + bx + c (that is, both a's have exactly the same value). The sign on a tells you whether the quadratic opens up or opens down.
In Algebra, the equation of a line is represented by y = mx + b, where m is the slope and b is the y-intercept. Thus, algebraists prefer to maintain this format by using the form LinReg(ax + b), where a is the slope and b in the y-intercept.