What is negative 5 to the power of 4

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?

Right ∆abc has coordinates a(-7, 3), b( -7, 10), and c(-1, 3). the triangle is reflected over the x - axis and then reflected again over the y - axis to create ∆a'b'c'. which are the coordinates of vertex a'?