Therefore, the coordinates of the midpoint of AB are (x1+x22, y1+y22). ... That is the middle point of the line segment joining the points (x1, y1) and (y2, y2) has the coordinates (x1+x22, y1+y22). Solved examples on midpoint formula: 1.
Answer:
x = 25
y = 21
Step-by-step explanation:
4x + 10 + 3x - 5 = 180° because these two angles makes a straight line
7x + 5 = 180° subtract 5 from both sides
7x = 175° divide by 7
x = 25
2y + 28 + 4y + 26 = 180° because the sum of these angles is equal to a straight line's measure
6y + 54 = 180° subtract 54 from both sides
6y = 126 divide both sides by 6
y = 21
The answer is C.
x=2
y=-30
(2;-30)
A line can be drawn by joining the plot of the two given points
- Please find attached the graph of the line created with MS Excel
- The equation of the line is <u>y = -x - 2</u>
Reason:
Given points on the line are (-5, 3) and (-1, -1)
- From the given points, the graph of the line can be plotted with MS Excel
The slope, <em>m</em>, of the line is given as follows
![Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}](https://tex.z-dn.net/?f=Slope%2C%20%5C%2C%20m%20%3D%5Cdfrac%7By_%7B2%7D-y_%7B1%7D%7D%7Bx_%7B2%7D-x_%7B1%7D%7D)
Therefore, we have;
![Slope, \, m =\dfrac{-1 - 3}{-1 - (-5)} = \dfrac{-4}{4} = -1](https://tex.z-dn.net/?f=Slope%2C%20%5C%2C%20m%20%3D%5Cdfrac%7B-1%20-%203%7D%7B-1%20-%20%28-5%29%7D%20%3D%20%5Cdfrac%7B-4%7D%7B4%7D%20%3D%20-1)
The equation of the line in point and slope form is therefore;
y - 3 = -1·(x - (-5) = -x - 5
In slope and intercept form, we have;
y = -x - 5 + 3 = -x - 2
- The equation of the line in slope and intercept form is <u>y = -x - 2</u>
Learn more here:
brainly.com/question/2088114
I'm pretty sure the answer is x=122