Answer:
Step-by-step explanation:
slope = ![\frac{y_{2}-y_{1}}{x_{2}-x_{1}}](https://tex.z-dn.net/?f=%5Cfrac%7By_%7B2%7D-y_%7B1%7D%7D%7Bx_%7B2%7D-x_%7B1%7D%7D)
![=\frac{-5-5}{9-8}\\\\=\frac{-10}{1}\\\\=-10\\](https://tex.z-dn.net/?f=%3D%5Cfrac%7B-5-5%7D%7B9-8%7D%5C%5C%5C%5C%3D%5Cfrac%7B-10%7D%7B1%7D%5C%5C%5C%5C%3D-10%5C%5C)
Point-slope form:
y - y1 = m(x - x1)
y - 5 = -10(x - 8)
Answer:
A. f(x) = -3x - 4
Step-by-step explanation:
Answer:
nope
Step-by-step explanation:
we solve the second system: (it is more easy).
8x+9y=48
-8.5y=-51 ⇒y=-51/-8.5=6
8x+9(6)=48
8x+54=48
8x+54-54=48-54
8x=-6
x=-6/8=-3/4
Then; in te second system the solution is : x=-3/4; y =6
Now, we replace "x" by "-3/4" and "y" by "6", in the first systmen.
8x+9y=48
8(-3/4)+9(6)=-6+54=48. verified
12x+5y=21
12(-3/4)+5(6)=-9+30=21 verified
Therefore,
These two wystems are similar.