The graph of a quadratic function is called a parabola. There are 3 forms of quadratic equations. If A is positive, the parabola opens up or to the right. If A is negative, it opens downwards or to the left. All quadratic equations have a vertex, which is the turning point of the graph. Quadratic graphs are symmetrical across the y-axis, which runs through the axis of symmetry. Formula: x= -b/2a A quadratic function crosses the y-axis when x=0 The y-intercept always has an x-value of 0. For a parabola, the y-intercept will be the point(don’t know this one sorry!) A quadratic function crosses or touches the x-axis once, twice, or never.
The answer for either field being harvested is 6.25 days (acres/(rate of harvest)) The answer is probably seven because, even though a day can be divided into parts, the fields are done the seventh not the sixth. (I'm assuming the problem calls for whole days)