Question

Which of the following is an equation of the line that passes through the point (950, 1,250) and has a slope of -10?
a. y= -10x + 1250
b. y= -10x + 10750
c. y= -10x - 10750
d. y= -10x - 8250

Answer 1

The equation of the line given a point and slope can be expressed as follows,
                         y - y1 = m(x - x1) 
where x1 and y1 are the abscissa and ordinate of the point and m is the slope. Substituting the given,
                        y - 1250 = -10(x -950)
Simplification leads to y = -10x + 10750. Thus, the answer is letter B.