1. If the coordinates of one endpoint of a line segment are (-3, 4)and the midpo
ID: 3093143 • Letter: 1
Question
1. If the coordinates of one endpoint of a line segment are (-3, 4)and the midpoint of the segment is (-1 , 2), what are thecoordinates of the other endpoint of the segment?A. (-2,1) B. (-4, 2) C. (1,- 8) D.(-5,10) E.(-1-8)
2. If the zeros of a quadratic function are -5 and 3 , onepossible quadratic function having these zeros is:
A. f(x) = (x-5)(x + 3) B. f(x) = x2 -2x -15 C.f(x) = 2x2 - 4x - 30
D. f(x) = x2 + 2x - 15 E. f(x) = x3 + 2x2 -15x
3. In a high school senior class of 800 students, only 240 attendedthe senior prom. What percent of the senior class didnot attend the senior prom?
A. 7% B. 30 % C.33% D. 67 % E.70 %
4. The solution set of the equation log3(x) + log3 (x + 6) =3 is
A. {-9,3} B. {9,-3} C. {3} D. {-9} E.
5. If g(x) = 1-x - x + 4, then g( - 1)is:
A. -1(1-x - x +4) B.4 C.-1-x + x - 4 D.6 E.-6
6. It took a copier from 9:42 pm until 9:51 pm the same day tocomplete an order that required 54 copies. If the next orderis begun at 8:21 am and requires 216 copies, what is the earliestit will be done?
A. 8:36am B. 8:53am C. 8:57am D. 9:01am E. 9:11 am
2. If the zeros of a quadratic function are -5 and 3 , onepossible quadratic function having these zeros is:
A. f(x) = (x-5)(x + 3) B. f(x) = x2 -2x -15 C.f(x) = 2x2 - 4x - 30
D. f(x) = x2 + 2x - 15 E. f(x) = x3 + 2x2 -15x
Explanation / Answer
1. [(x1+x2)/2, (y1+y2)/2] m=(x1+x2)/2 -1=(-3+x2)/2 -2=-3+x2 3-2=x2 x2=1 m=(y1+y2)/2 2=(4+y2)/2 4=4+y2 y2=4-4 y2=0 (1,0) 2. x^2+2x-15 (x-3)(x+5) x-3=0 x=0-(-3) x=0+3 x=3 x+5=0 x=0-5 x=-5 D 3. 800x=240 x=240/800 x=0.30 30% B 4. c 5. 1-(-1)-(-1)+4=1+1+4=6 D 6. 54/9=6 6 copies per minute 216/x=6 216=6x x=216/6 x=36 minutes 8:57am C
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