Answer:

Explanation:

Comparing it with slope intercept form "y = mx + b" where 'm' is slope and 'b' is y-intercept.
Here slope: 3/2 and y-intercept: -5
Parallel slope has the same tangent slope.
Pass through point (x, y) = (6, 3)
Equation:


WHat do you mean when you say you don't know "which graph is which"
Just multiply 38 by 50.
1,900
88/8 =11
Unique key in 1 octave = 12
so, in 11 octave, 12*11 = 132