I’m not sure, I would try to help but I seem to have lost my notes.
Answer: ABC EASY AS 123
Step-by-step explanation:
Answer:
The rule is: y = -10x+85
Step-by-step explanation:
The rule is given by:

Here m is the gradient and b is the y-intercept.
We have to take two pairs of input-output to find the rule
Let the two pairs be:
(x1,y1) = (1,75)
(x2,y2) = (2,65)
Slope is found using the formula:

Putting the values

Putting the value of slope

Putting a pair of input-output in the equation (1,75)

Putting the value of b

Hence,
The rule is: y = -10x+85
A TTBB ensemble is a four-part men's chorus (quartet). T stands for tenor B stands for baritone or bass voice.