Plot the following points and find the area of the figure. (2,4); (-2,4); (-2,-4); (2,-4)
2 answers:
Answer:
32 units squared
Step-by-step explanation:
When we plot these points on the xy plane, we will see that it makes a rectangle with the dimensions 4 by 8.
The area of a rectangle is given by , where l is the length and w is the width. Here,
= 8 and w = 4. So: A = 8 * 4 = 32.
Thus, the answer is 32 units squared.
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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.