AD is the diagonal of a 6 by 15 rectangle,
31.
[tex]AD^2 = 6^2+15^2=36+225=261 = 9(29)[/tex]
[tex]AD=3 \sqrt{29}[/tex]
Choice A
32.
[tex]d^2 = 2^2+3^2=4+9=13[/tex]
[tex]d=\sqrt{13}[/tex]
Choice A
33.
7 - 4x = 7y
4x + 7y = -7
The parallel through (2,0) keeps the coefficients on x and y and just changes the constant:
4x + 7y = 4(2)+7(0)= 8
7y = -4x + 8
y = (-4/7) x + 8/7
Choice B
