Fig. 7.30 a
The coordinates of the vertices of APQR are
P(0, 2), Q(4, 6) and R(8, 1).
Choose a suitable scale and draw APQR
on graph paper.
b With the point (4, 4) as centre of
enlargement, enlarge APQR by scale
factor 2
Write down the coordinates of the
vertices of the enlargement, P'Q'R'.
​

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet