Multiple linear regression

Question 1

Multiple features

Answer 1

X was a single number, now we have x1, x2, x3…. etc

Question 2

Vector

Answer 2

List of numbers, draw arrow above (optional signifier)

Question 3

range(0,n)

Answer 3

0….n-1

Question 4

Vectorization

Answer 4

Makes your code shorter, and run faster
f = np.dot(w,x) + b

np.dot(w,x)