Given:
A line AB joins the points A (3,4) and B (5,8).
To find:
The midpoint of the line AB.
Solution:
Midpoint formula:
A line AB joins the points A (3,4) and B (5,8). So, the midpoint of line AB is
Therefore, the midpoint of the line AB is (4,6).
The first thing to do with these problems is to convert them into y=mx+b form; this will literally show you the answer to slope and y intercept since m=slope and b=y intercept.
To convert, isolate the y and the rest should fall into place. Subtract 2x from 4y and the other side of the equation to get the equation 4y= -2x+9 (put the x first because of mx+b). Then Divide the 4 from y and do the same to the other side to get y= -1/2x+9/4. M= -1/2 so that is the slope. B=9/4 so that is the y intercept
In order for this to become a true statement, the value of n would have to be 5
Answer:173.5
Step-by-step explanation:
U² + 6u - 27
u² + 9u - 3u - 27
(u - 3)(u + 9)
