Astudent is attempting to find the equation of a line given a point and the slope.
a student is attempting to find the equation of a line given a point and the slope. which of the following statements best applies to the sample mathematical work shown below?
given (10, –2) with a slope of –1, i find an equation for the line by plugging in values i'm given into a point-slope form equation. thus i have y – (–2) = –1( x –10), which results in an equation of y = –x + 8.
a.
the student improperly set up the equation to find the y-intercept.
b.
the student used the correct equation to find the y-intercept. however, he did not solve for the y-intercept properly.
c.
the slope in the final equation is not correct.
d.
the mathematical work shown above is correct.