Find the slope of the line passing through the pair of points.
?
?
A. m = -1
B. m = 2
C. m = 1
D. m = 20
E. none of these
Answer: A
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Complete the square for the binomial. Then factor the resulting perfect square trinomial.x2 + 7x
A. x2 + 7x + 14 = (x + 7)2
B. x2 + 7x + 
= 
2
C. x2 + 7x - 
= 
2
D. x2 + 7x + 
= 
2
Solve and graph. Write the solution set in set-builder and interval notation.
+ 6 ? 10
A. {x
x < 10}; (-?, 10)
B. {x
x ? 8}; [8, ?)
C. {x
x ? 8}; (-?, 8] 
D. {x
x ? -2}; (-?, -2] 
Solve the problem.If a single pane of glass obliterates 15% of the light passing through it, then the percent P of light that passes through n successive panes can be approximated by the equation P = 100e-0.15nHow many panes are necessary to block at least 50% of the light?
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.When solving a logarithmic equation, why must you always check that each solution works in the original equation?
What will be an ideal response?