Answer:
D. ![y-110=55(x-2)](https://tex.z-dn.net/?f=y-110%3D55%28x-2%29)
Step-by-step explanation:
Cassidy’s family is driving home from vacation at an average speed of 55 mph.
Initially, at x = 0 hours, the family is y = 0 miles away form home. We get the first point (0,0).
After x = 2 hours, the family is y = 110 miles from home. We get the second point (2,110).
The equation in point-slope form that represents their distance y from home, after x hours is
![y-110=\dfrac{0-110}{0-2}(x-2)\\ \\y-110=\dfrac{110}{2}(x-2) \\ \\y-110=55(x-2)](https://tex.z-dn.net/?f=y-110%3D%5Cdfrac%7B0-110%7D%7B0-2%7D%28x-2%29%5C%5C%20%5C%5Cy-110%3D%5Cdfrac%7B110%7D%7B2%7D%28x-2%29%20%5C%5C%20%5C%5Cy-110%3D55%28x-2%29)
Answer:
<em>y = 7x - 47</em>
Step-by-step explanation:
y = mx + b (m is slope, b y-intercept)
Parallel lines have the same slope.
y -
= m( x -
)
~~~~~~~~~~~~~~~~
y = 7x + 1
m = 7
(6, - 5)
y + 5 = 7 (x - 6)
<em>y = 7x - 47</em>
Answer:
:O
Step-by-step explanation:
take this for collateral
Answer: 31.5
Step-by-step explanation:
9*3.5=31.5
Hopefully this is what they meant
Answer:
-6
Step-by-step explanation:
To find the slope, plug any two of your points into the slope formula.
I'll use your first two; (-2, 8) and (-1, 2).
![\frac{y2-y1}{x2-x1}](https://tex.z-dn.net/?f=%5Cfrac%7By2-y1%7D%7Bx2-x1%7D)
Your y1 term is 8, your y2 term is 2.
Your x1 term is -2, your x2 term is -1.
![\frac{2-8}{-1-(-2)} \\\\\frac{-6}{-1+2} \\\\\frac{-6}{1} \\\\-6](https://tex.z-dn.net/?f=%5Cfrac%7B2-8%7D%7B-1-%28-2%29%7D%20%5C%5C%5C%5C%5Cfrac%7B-6%7D%7B-1%2B2%7D%20%5C%5C%5C%5C%5Cfrac%7B-6%7D%7B1%7D%20%5C%5C%5C%5C-6)
Your slope is -6.