Aparabola is defined as the set of points in the plane that are equidistant from a fixed point (called the focus of the parabola) and a fixed line (called the directrix of the parabola).consider the parabola with focus point (1,1) and directrix the horizontal line y=−3.plot the focus and draw the directrix graph.

Step-by-step explanation:

A parabola is defined as the set of points in the plane that are equidistant from a fixed point  and a fixed line.

Let point on parabola be (x,y)

Distance from focus(1,1) and point (x,y):

Distance from point (x,y) and line y=-3  ( x would be vary) (x,-3)

Both distance must be equal for parabola

Please find attachment for graph. Focus and directrix shown in graph.

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b