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Exercises

1. Solve these equations using multi-images.
   1. $(y+2)^{2}=9$
   2. $(x-1)^{2}=4$
   3. $(x+1)^{2}+3=7$
2. Visualize each of these expressions using subimages. Focus on each version, one at a time, flipping through the different subimages.
   1. $3\pm x$
   2. $\frac{y+4}{x\pm1}$
   3. $\frac{2x\pm3}{y\pm2}$ (You will flip through four different combinations.)
3. Solve each of these equations by using subimages.
   1. $-x^{2}+5x-4=0$
   2. $(x+2)^{2}+3=7$
   3. $cos\pi(x-2)=.5$, $1\le x\le3$

Solutions:

1(a) y = -5 and y = 1 (b) x = -1 and x = 3 (c) x = 1 and x = -3

3(a)x = 1 and x = 4 (b) x = 0 and x = -4 (c) $x=\frac{5}{3}$ and $x=\frac{7}{3}$