Teslim is designing a cover for a book. He wants to have a rectangular grid with x^2-10x+21 squares in it, for some positive whole number x. What are the possible side lengths for the grid?

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

7

step-by-step explanation:

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system