For the quadractic function f(x)=1/4x2+2- what is the focal point? What is the equation of the directrix?

What should be done to solve the equation? x+14=21 add 14 to both sides of the equation. subtract 14 from the left side of the equation. add 14 to the left side and subtract 14 from the right side of the equation. subtract 14 from both sides of the equation.

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Which equation represents the model shown? a)1/3 divide 1/6 = 2 b)2/3 divide 1/6 = 2/18 c)1/3 divide 1/6 = 1/18 d)2/3 divide 1/6 =4