A professional cyclist is training for the Tour de France. What was his average speed in kilometers per hour if he rode the 194
1 answer:
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<u>Answer</u>:
A. y = + 3
<u>Explanation</u>:
slope:
:
:
equation: y - y1 = m( x - x1 )
y - 1 = ( x - 3 )
y = + 3
The line segment goes through (-2,3) and (1,-3).
The slope of the line is
Therefore the equation of the line segment is of the form
y = -2x + b
Because the line segments goes through (-2,3), therefore
-2(-2) + b = 3
4 + b = 3
b = -1
Answer: The equation is y = -2x - 1
The slope of the line is
Therefore the equation of the line segment is of the form
y = -2x + b
Because the line segments goes through (-2,3), therefore
-2(-2) + b = 3
4 + b = 3
b = -1
Answer: The equation is y = -2x - 1