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(1) If -4 is a zero of polynomial P(x)= x^2 +11x +k ..
then it will satisfy P(-4) = 0
=> (-4)^2 + 11 x (-4) +k =0
=> k = 28
(2) the distance of a point from x-axis is the y- coordinate in 2-D ..
=> Distance of point (-2,3) from x-axis is 3 .
(3)Eqn. of line which is parallel to x-axis is
y = c , where c is y intercept of the line ,or distance of the line from origin ..
=> the line which is parallel to x-axis and is at a distance of 2 units from origin is y = 2 .
then it will satisfy P(-4) = 0
=> (-4)^2 + 11 x (-4) +k =0
=> k = 28
(2) the distance of a point from x-axis is the y- coordinate in 2-D ..
=> Distance of point (-2,3) from x-axis is 3 .
(3)Eqn. of line which is parallel to x-axis is
y = c , where c is y intercept of the line ,or distance of the line from origin ..
=> the line which is parallel to x-axis and is at a distance of 2 units from origin is y = 2 .
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