How to put (2,8); m=1/2 into slope intercept form

What is the slope of the line (-7,2) (4,6)

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y

Arectangle has a length of 6cm by 8cm what is the length of a diagonal of the rectangle