Simplify the difference quotient for the linear function f(x), and use it to identify the rate of change of the function.f(x) = 7x + 2
A. 2
B. -7
C. 7
D. -2
Answer: C
Mathematics
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Solve the problem. Round results to an appropriate number of significant digits.A fire is sighted due west of lookout A. The bearing of the fire from lookout B, 
due south of A, is 
How far is the fire from B (to the nearest tenth of a mile)?
A. 20.9 mi B. 18.9 mi C. 21.9 mi D. 19.9 mi
Mathematics
Solve the equation.-2x = -8
A. -4 B. -6 C. 4 D. 6
Mathematics
Multiply.× 
A. 6.335 B. 0.06335 C. 0.0006335 D. 0.006335
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics