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Under an enlargement centre (0,3), the point (2,5) is mapped onto (4,K). Determine the value of K

      

Under an enlargement centre (0,3), the point (2,5) is mapped onto (4,K). Determine the value of K

  

Answers


John
Scale factor of enlargement

= $\frac{image\;distance}{object\;distance}$

K = $\frac{4 - 0}{2 - 0}$ = $\frac{4}{2}$ = 2

For y-co-ordinates

$\frac{K - 3}{5 - 3}$ = 2

K - 3 = 4; K = 7
johnmulu answered the question on March 6, 2017 at 11:36


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