SAT Subject Test Mathematics Level 1

(A) 3

(B) 9

(C) 27

(D) 729

(E) 531,441

42 . The line y = −1 intersects the parabola y = x^2 − 10x + 24 at one point.
What is the vertex of the parabola?

(A) (−5,    −1)

(B) (0, −1)

(C) (5, −1)

(D) (24,    −1)

(E) (35,    −1)

43 .

Figure  6

Note:   Figure  not drawn   to  scale.

In  Figure  6,  if  the length  of

equals  one-half    the length  of

,   the sum of  BC  and CD  equals  three-fourths   the length  of