Suppose that y is directly proportional to x. Use the given information to find the constant of proportionality k. Then use y = kx to find y for the given value of x.y = 19.6 when x = 7;
Find y given x = 10.
A. k = 137.2; y = 
B. k = 2.8; y = 28
C. k = 2.8; y = 30
D. k = 3; y = 28
Answer: B
Mathematics
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.
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A. -
B. -
C. 
D. undefined
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Sketch the graph of the exponential function. Label the y-intercept.f(x) = 
x
A. 
B. 
C. 
D. 
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+ 
+ 
A. 11
B. 1
C. 
D. 
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