Answer:
y= -2x +1
Step-by-step explanation:
<u>slope- intercept form</u><u>:</u>
y= mx +c, where m us the gradient and c is the y-intercept.
Let's find the value of m first using the gradient formula.
Gradient= ![\frac{y1 - y2}{x1 - x2}](https://tex.z-dn.net/?f=%20%5Cfrac%7By1%20-%20y2%7D%7Bx1%20-%20x2%7D%20)
![m = \frac{ - 3 - 3}{2 - ( - 1)} \\ m = \frac{ - 6}{2 + 1} \\ m = \frac{ - 6}{3} \\ m = - 2](https://tex.z-dn.net/?f=m%20%3D%20%20%5Cfrac%7B%20-%203%20-%203%7D%7B2%20-%20%28%20-%201%29%7D%20%20%5C%5C%20m%20%3D%20%20%5Cfrac%7B%20-%206%7D%7B2%20%2B%201%7D%20%20%5C%5C%20m%20%3D%20%20%5Cfrac%7B%20-%206%7D%7B3%7D%20%20%5C%5C%20m%20%3D%20%20-%202)
y= -2x +c
To find the value of c, substitute a pair of coordinates.
When x= -1, y=3,
3= -2(-1) +c
3= 2 +c
c= 3 -2
c= 1
Thus the equation of the line is y= -2x +1.
Answer:
it would be nice if I could see it
The two domes or hemispheres simply have the area of a complete sphere with the same diameter. So the total area is the area of a sphere and a cylinder...
as=(4p3^3)/3, ac=10p3^2
A= 36p+90p=126p in^3
I'm going to refer to the length of the pool as L.
2x + 2L = perimeter.
The width of pool multiplied by two added to the length of the pool multiplied by two equals to the perimeter.