UCJIUNIJ

voto memben.

1. Figure PQRST shown in the coordinate grid is translated 3 units down and 2 units to the right. Then
reflected in the y-axis to form P'Q'R'ST' (not shown).
a
Which statements are true? Choose all that apply.
lth
STT
0 ZS ZS
LS
.
O PT =P'T
Dr.
The area of P'Q'R'ST'is greater than the area of
PQRST
The perimeter of P'Q'R'S'T' is greater than the area of
PQRST
The figures are oriented the same way
The figures are congruent
O

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