The equation for the graph sketched below is 
The given graph is an exponential graph and the standard exponential graph is expressed as 
a is the y-intercept of the graph
(x, y) is any point on the graph.
Given the following from the graph;
a = -3
(x, y) = (1, 1)
Substitute the point and the y-intercept into the formula to have

Get the required exponential equation:
Recall that 

Hence the equation for the graph sketched below is 
Learn more here: brainly.com/question/19245707
You want to figure out the relationship between -3 and -8. the simplest one is subtraction: -3 - 5 = -8
your x value, -3, minus 5 equals -8, your y value
so the rule for this is x - 5 = y
These are the answers for the first 2 questions
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<em>1.</em> 16.956 m
<em><u> formula:</u></em> C = 2πr
C = 2(3.14)(2.7)
C = 6.28(2.7)
C = 16.956
<em>4.</em> 15.7 ft.²
<u><em>formula:</em></u> C = πd
C = 3.14(5)
C = 15.7
Answer:
the only answer that makes sense would be the length