A student is playing competitive chess. He moves his knight forward 2 spaces and the the left one space. On his next turn, he moves the same
piece two spaces to the left, and one space backwards.
What is the composition as a single transformation?
If the knight is located at point (3,-4) to start the game, where is he after completing the
two moves?

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

the answer is 15% decrease

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

7/2

(decimal: 3.5)

welcome ; )

step-by-step explanation: