A line passes through point (-2, 5) and has a slope of . Points A(x, 3) and B(-2, y) lie on the line. The value of x is , and the value of y is . NextReset

Question

i really need help i been on this isnce school let out

Answer 1

 

Since the line passes through point (-2, 5) and (-2, y), this has to be a vertical line, because the x values are identical for all vertical lines.  The y-coordinate can be any real number, because the line extends from negative infinity to positive infinity.  The slope of the line is undefined (vertical lines have undefined slope).  x = -2, because all x values are constant for vertical lines. 

 

The equation of the line is .... x = -2

Answer 2

"line passes through point (-2, 5)"  and  "B(-2, y) lie on the line"  means that y=5.  So, you have the value of y.

 

The slope, m in the slope-intercept formula for a line (y=mx+b), is:

     m = (y₂ - y₁) / (x₂ - x₁)

     m = (y - 3) / ((-2) - x)        [use points A and B]

     m = (5 - 3) / ((-2) - x)          [because y=5]

     m = -2 / (x+2)

     (x+2) = -2/m

      x = -2/m - 2                [when you know m, then you can determine x]

Answer 3

You forgot to state the slope. This is necessary to answer your question.