What’s the opposite of 4 and 1\3

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution