For the given matrix
(1 1 -1 1). (3 -4 -5 -1). (6 -3 1 20). Multiply all entries in row one by -3, and then
add to the corresponding entries in row two,
what will the row two become?
A. (0 -7 -2 -4)
B.(0 -4 -5 -1)
C.(0 -1 -2 -4)
D. (0 -7 2)
E. None of them

1) is right

step-by-step explanation:

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex