Solve.How many lines are determined by 18 points, no 3 of them being collinear?
A. 18
B. 153
C. 2448
D. 306
Answer: B
Mathematics
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Find the equation for the tangent to the curve at the given point.f(x) = x - 
; (1, 0)
A. y = 
x + 1
B. y = -7x - 9
C. y = 
x - 
D. y = -7x + 28
Mathematics
Graph the function using a calculator and point-by-point plotting. Indicate increasing and decreasing intervals.f(x) = 
A. Decreasing: 
, 
Increasing: 
, 
B. Decreasing: (0, 4]
Increasing: [4, ?)
C. Decreasing: (0, ?)
D. Decreasing: (0, 1]
Increasing: [1, ?)
Mathematics
Write a formula for a linear function f that models the data exactly.
A. f(x) = -4x + 6 B. f(x) = 4x + 6 C. f(x) = 8x + 22 D. f(x) = -8x + 22
Mathematics
Simplify.
A. 
B. 1
C. 
D. 
Mathematics