What’s the slope of these lines please help for brainlist

The triangles are similar. what is the value of x? show your work.

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.