X = 20
Isolate the variable by dividing each side by factors that don't contain the variable.
x
=
20
Y= Mx+b
In the equation of a straight line,the slope is the number "m" that is multiplied on the x, and "b<span>" is the </span>y<span>-intercept (that is, the point where the line crosses the vertical </span>y<span>-axis).</span>
Answer: 0
Step-by-step explanation:
To find the slope, you would need to use the formula
.
![m=\frac{1-1}{-3-2} =\frac{0}{-5} =0](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B1-1%7D%7B-3-2%7D%20%3D%5Cfrac%7B0%7D%7B-5%7D%20%3D0)
The slope is 0, meaning the line is horizontal.
Answer:
The answer to your question is a) y - 2 = -5(x - 3)
b) y = -5x + 17
Step-by-step explanation:
Data
A (1, 12)
B (3, 2)
Process
1.- Find the slope
Formula
![m = \frac{y2 - y1}{x2 - x1}](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7By2%20-%20y1%7D%7Bx2%20-%20x1%7D)
Substitution
![m = \frac{2 - 12}{3 - 1} = \frac{-10}{2} = - 5](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7B2%20-%2012%7D%7B3%20-%201%7D%20%3D%20%5Cfrac%7B-10%7D%7B2%7D%20%3D%20-%205)
2.- Find the equation in point slope form
Equation
y - y1 = m(x - x1)
Substitution and equation
y - 2 = -5(x - 3)
3.- Find the slope-intercept form
Expand the point slope form
y - 2 = -5x + 15
Simplify
y = -5x + 15 + 2
Equation
y = -5x + 17