The sides of a polygon are 3cm, 5cm, 6cm, 8cm and 10cm. The perimeter of a second similar polygon is 48cm. What is the length of the longest side of the second polygon?

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

it would be 6xy and -16xy.