Answer:

Step-by-step explanation:
<u>Linear Modeling</u>
It consist is setting up a linear relationship between two variables, given some experimental data. Only 2 points are needed to set up the equation of a line, but if more than 2 points are used, then the result should use statistical approaches like linear regression to find the best-fit line.
For the question at hand, Marty practices his piano lessons 11 minutes the week #1. It provides the first point (1,11). He practices 25 minutes per day on the third week. It gives us another point (3,25). This is enough to find the equation of a line. The general formula for a line, having two points (m1,w1) (m2,w2) is

Let's plug in our values

Simplifying:


Answer:
commutative property of multiplication
Step-by-step explanation:
B I’m pretty sure dmdndndnsmndmddmd
Answer:
((1)/(2),-(1)/(2))
Step-by-step explanation:
7+4a=55
4a=55-7
4a=48
a=48/4
a=12