Answer:
Step-by-step explanation:
0.5cos(2pi/9x-7pi/9)-4.5
<em>Complete Question:</em>
<em>The function shown models the depth d (in inches) of snow on the ground during the first 9 hours of a snowstorm, where t is the time (in hours) after the snowstorm begins.
</em>
<em>
The -intercept means that there were[ ]inch(es) of snow on the ground at the start of the storm and the slope means that[ ]inch(es) of snow falls every hour during the storm.
</em>
<em>Function: d(t)= 1/2t+6</em>
Answer:


Step-by-step explanation:
Given

Required
Determine the y intercept and the slope
y-intercept:

A function has a format of:

Where b represent the y intercept:
By comparison of
and 

Slope:
A function has a format of:

Where m represent the slope
By comparison of
and 

This is not a full question. If you were given the amount at the begining of 1970 (we'll call it x) and the amount at the end of 1980 (we'll call it y), we should solve them accordingly:
y-x=? (calling the answer a)
a/y=%(not answer yet, call this b)
b+100=answer
Answer:
-3/4
Step-by-step explanation:
In slope-intercept form, the slope is the coefficient of x.
Answer:10
Step-by-step explanation:
9/5=18/x
90=9x
X=10