Determine where the given function is increasing and where it is decreasing. f(x) = x2 + 7x - 4
A. Decreasing on 
, increasing on 
B. Decreasing on 
, increasing on 
C. Increasing on 
and (0, ?), decreasing on 
D. Increasing on 
, decreasing on 
Answer: A
Mathematics
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Solve the equation.x2 + 5 = 9
A. {±2} B. {4.5} C. {2} D. {±1}
Mathematics
Evaluate the expression.
A. 906,192 B. 863,040 C. 992 D. 29,760
Mathematics
Express the relationship between a small change in x and the corresponding change in y in the form 
.f(x) = 3
- 
A. dy = 
dx
B. dy = 
dx
C. dy = 
dx
D. dy = 
dx
Mathematics
Simplify the radical expression. If appropriate, include absolute values.
A. 7x
B. 7
C. -7
D. 49x
Mathematics