<em>If you wright it as a fraction it would be 2/5! :) 0.4=4/10=2/5</em>
Solution
The general form of the n-th term = a + (n-1)d
An = 2 +(n-1)0.5
An = 2 + 0.5n - 0.5
An = 0.5n +1.5
Here the slope is 0.5 and y-intercept is 1.5
Therefore, the line start from y = 1.5 rises 0.5 level because the slope is 0.5
Now look at the graph.
The graph D start from 1.5 and moves at the rate of 0.5
The answer is Graph D.
The Answer would be B
it would be B because 8-2 is 6 and if you keep subtracting by 6 you will get ur answer and to get the first one you would just need to add 8 plus 6 to get 14
Relation between fee charged by piano instructor and the lessons has been shown in the graph.
Two points passing through the line are (2, 80) and (4, 140)
Let the one time fee = $b
Hourly charges for the lessons = $x
Equation of the line will be,
y = mx + b
Slope of the line 'm' =
m =
m =
m = 30
y = 30x + b
For point (2, 80),
80 = 30(2) + b
b = 80 - 60
b = 20
Therefore, one time fee charged by the instructor = $20
Since instructor put a coupon to waive off the one time fee, value of the coupon will be = $20
