Someone help me and can yall explain me!

What is the slope of a line that is perpendicular to y = 3x + 1

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10