Algebra 1, describe and correct the error. in advance.

To determine if it’s a right triangle you would use the Pythagorean theorem. A^2+B^2=C^2 <——- That’s the equation. So you have to know that the hypotenuse(c) is always the longest side. 28^2+45^2=53^2. So yes it is a right triangle.

answer: what do you mean

b.-4 units

all you   do is count how many times you move