Graph the equation y=-x^2+4x+5 on the accompanying set of axes. You must plot 5 points including the roots and the vertex. Using the graph, determine the vertex of the parabola.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

angle efh= angle egh

113.42

i hope that is right.

step-by-step explanation:

b is the correct answer