The line by equals 2X -4 is dilated by scale factor three has been centered at origin. Which equation represents the origin of the line after dilation

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?