Determine the slope and the y-intercept for the linear equation. Graph the line.y = 
x - 1
A. m = - 
, y-intercept: (0, -1)
B. m = 
, y-intercept: (0, -1)
C. m = - 
, y-intercept: (0, 0)
D. m = 
, y-intercept: (0, 0)
Answer: B
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The number S of species of birds on an island is given approximately by
,
where A is the area, in square kilometers, of the island that is usable for birds.A: If a conservation program is able to increase the usable area by 25%, how is the number of species affected? Express your answer in terms of a percent.B: If a natural disaster reduces the usable area of the island by 23%, how is the number of species affected? Express your answer in terms of a percent.C: If the number of bird species is 54, and the usable area is 218 square kilometers, find the value of c.
?
Round your answers to two decimal places if necessary.
?
What will be an ideal response?
Find the approximate circumference of the circle.Round to the nearest thousandth.
A. 12.560 ft B. 6.280 ft C. 12.56 ft D. 2.540 ft
Solve the problem.Ms. Losch has a piece of rope 
long that she cuts into pieces for an experiment in her first-grade class. Each piece of rope is to be 
long. How many 
long pieces of rope can she cut from the original piece of rope?
A. 2 pieces of rope B. 23 pieces of rope C. 21 pieces of rope D. 22 pieces of rope
Divide.
A. 5 - 2i B. -2 - 5i C. -2 + 5i D. 5 + 2i