Answer:
The <em>b</em> is the y-intercept.
the <em>m</em> is the slope.
12 ribbons
p.s: im in 7th grade so you can trust me
Answer:
Graph attached.
Step-by-step explanation:
In the question the given parameters are as followed.

1). Amplitude a = 7
2). Period = 
3). Vertical shift = 1 means mid line of the graph will be y =1 and maximum of the graph is 8 and minimum is -6.