The answer would be 12.4 .
Answer: So, multiplying two rationals is the same as multiplying two such fractions, will result in another fraction of this same form since integers are closed under multiplication. , multiplying two rational numbers produces gets another rational number.
Step-by-step explanation:
Slope can be found using the formula
![\frac{y2-y1}{x2-x1}](https://tex.z-dn.net/?f=%20%5Cfrac%7By2-y1%7D%7Bx2-x1%7D%20)
.
![\frac{13-5}{6-2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B13-5%7D%7B6-2%7D%20)
![\frac{8}{4} ](https://tex.z-dn.net/?f=%20%5Cfrac%7B8%7D%7B4%7D%0A%20)
Slope = 2
So the slope of the line that passes through that point is 2.
Hope this helps :)
a) 8:14
b) 6:8
yeah its telling me I'm short of words
Answer with Step-by-step explanation:
We are given that
![f(x)=\mid x-9\mid](https://tex.z-dn.net/?f=f%28x%29%3D%5Cmid%20x-9%5Cmid)
when x<9
when ![x\geq 9](https://tex.z-dn.net/?f=x%5Cgeq%209)
LHD
![\lim_{x\rightarrow 9-}f'(x)](https://tex.z-dn.net/?f=%5Clim_%7Bx%5Crightarrow%209-%7Df%27%28x%29)
=![-\lim_{x\rightarrow 9-}(x-9)=-1](https://tex.z-dn.net/?f=-%5Clim_%7Bx%5Crightarrow%209-%7D%28x-9%29%3D-1)
RHD
![\lim_{x\rightarrow 9+}f'(x)](https://tex.z-dn.net/?f=%5Clim_%7Bx%5Crightarrow%209%2B%7Df%27%28x%29)
![=\lim_{x\rightarrow 9+}(x-9)=1](https://tex.z-dn.net/?f=%3D%5Clim_%7Bx%5Crightarrow%209%2B%7D%28x-9%29%3D1)
![LHD\neq RHD](https://tex.z-dn.net/?f=LHD%5Cneq%20RHD)
Hence, the function is not differentiable at x=9