![\frac{8-6}{3-2} = \frac{2}{1}=4](https://tex.z-dn.net/?f=%5Cfrac%7B8-6%7D%7B3-2%7D%20%3D%20%5Cfrac%7B2%7D%7B1%7D%3D4)
The slope is 2
y=2x + b
Plug in a point to solve for b
8 = 2(3) + b
8 = 6 + b
b = 2
The equation is y = 2x + 2
Answer:
when the input is 3 the output is 1
Step-by-step explanation:
inputs would basically be the x coordinates while outputs are the y coordinates. when you put in the x coordinate of 3, the y coordinate of 1 is what shows up as the output. (3,1) are the coordinates on the line
Answer:
A
Step-by-step explanation:
Answer:
<h2>x = 28</h2>
Step-by-step explanation:
ΔARP and ΔCRD are similar. Therefore the sides are in proportion:
![\dfrac{AR}{CR}=\dfrac{PR}{DR}](https://tex.z-dn.net/?f=%5Cdfrac%7BAR%7D%7BCR%7D%3D%5Cdfrac%7BPR%7D%7BDR%7D)
We have:
AR = 10 + x
CR = x
PR = 15 + 42 = 57
DR = 42
Substitute:
<em>cross multiply</em>
<em>use distributive property</em>
![(42)(10)+(42)(x)=57x](https://tex.z-dn.net/?f=%2842%29%2810%29%2B%2842%29%28x%29%3D57x)
<em>subtract 42x from both sides</em>
<em>divide both sides by 15</em>
![x=28](https://tex.z-dn.net/?f=x%3D28)
Let's use the slope formula!
m = y2 - y1 / (x2 - x1)
m = 6 + 7 / (-3 + 7) = 13/4