Parametric equation

Find the parametric equation of a line with y-intercept (0,-4) and a slope of -2.

Result

p = (Correct answer is: ) OK

Solution:

y=kx+q k=2 y=2x+q 4=2 0+q q=4 y=2x4 p:x=t y=42t;tR p=x=t;y=42t



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