A straight line in the xy- plane has y-intercept of 49 . On this line the x-coordinate of the point is 71 and y-coordinate is 12 then what is the slope of the line? Choose the correct choice: A) 0.5 B) 0.51 C) -0.52 D) 0.31 E) -0.49
Eq of line = Y = MX +-0.52   -0.52= 49   X=71   Y=12   Substitute given:   M = (Y--0.52) / X = (12 - 49) / 71 = -37/71 = -0.52   correct option is -0.52
<result>C</result>
A straight line in the xy- plane has y-intercept of 49 . On this line the x-coordinate of the point is 71 and y-coordinate is 12 then what is the slope of the line?