Answer:
b = 0
Step-by-step explanation:
Since,the equations y=3/4x+1 and y=1/2x+b intersect at (4,2)
So, plug x = 4 and y = 2 in equation y=1/2x+b, we find:

Answer: option c.
Step-by-step explanation:
To solve the given exercise and write the expression as a single logarithm, you must keep on mind the following properties:


Therefore, by applying the properties shown above, you can rewrite the expression given, as following:

Then as you can see, the answer is the option c.
Answer:
I think it's y-y[1] = m(x-x[1])
Step-by-step explanation:
the ones in the parentheses are like smaller near the bottom of the y and/or x btw.
Good luck! :)
Answer:
The first one doesn't help while both the second and third helps in finding the vertices
Step-by-step explanation: