Provide an appropriate response.Why does a linear function always have an inverse?
What will be an ideal response?
Answers will vary. One possibility: actually, a linear function does not always have an inverse. Any horizontal line, 
is a linear function; but it will obviously fail the horizontal line test (since the horizontal line 
will intersect the graph an infinite number of times). However, every other linear function always passes the horizontal line test. Therefore, any such linear function is one-to-one and thus has an inverse.
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Graph the exponential function whose equation is given. Start by using -2, -1, 0, 1, and 2 for x and finding the corresponding values for y.y = 3x + 1
A. 
B. 
C. 
D. 
Find the distance between the pair of points.(0, 0) and (1, -3)
A. 10
B. 2
C. 
D. -2
Solve the problem.A promotional deal for long distance phone service charges a $15 basic fee plus $0.05 per minute for all calls. If Joe's phone bill was $56 under this promotional deal, how many minutes of phone calls did he make? Round to the nearest integer, if necessary.
A. 8 min B. 2 min C. 820 min D. 1420 min
Translate to an equation and solve. What is 4.6% of $60,400?
A. $2778.40 B. $1313.04 C. $13,130.43 D. $63,178.40