Use the quadratic equation
="x^{2} -22x=75" align="absmiddle" class="latex-formula"> to answer the following questions. Part A: Suppose an equivalent quadratic equation is written: 
.What value of c would make the equation a perfect square trinomial? Part B: Rewrite the equation in the form 
. Part C: Solve the Quadratic equation to find the positive solution for x. x =___. Part D: Solve the Quadratic equation to find the negative solution for x. x =___.
1 answer:
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Answer:
A.
Step-by-step explanation:
We are given the two points (2,7) and (4,-1). In order to determine the linear equation, we need to find the slope and the y-intercept. First, find the slope <em>m.</em> Let (2,7) be x1 and y1, and let (4,-1) be x2 and y2:
Thus, the slope is -4.
Now, to find the y-intercept, we can use the point-slope form. Recall that the point slope form is:
Where (x1, y1) is a coordinate pair and m is the slope.
Use either of the two coordinate pair. I'm going to use (2,7). Substitute them for x1 and y1, respectively:
This is also slope-intercept form. The answer is A.