A. (3, -3)
B. (4, 21)
C. (4, 18)
D. (3, 17)
E. (-2, 13)
F. (-1, 9)
please only choose one anwser
2007-04-05 08:15:45 · 10 answers · asked by bekah_2009 2 in Education & Reference ➔ Homework Help
b
(21)-3=2(4+5)
18=2*9
18=18
2007-04-05 08:28:12 · answer #1 · answered by killjoy_thehappyface 2 · 0⤊ 0⤋
B. (21) - 3 = 2((4) + 5)
18 = 2(9)
18 = 18
2007-04-05 08:25:26 · answer #2 · answered by seattlefan74 5 · 0⤊ 0⤋
Simplify the original equation from y -3 = 2(x +5) into the more acceptable form which is:
Y = mx + c where m = the slope of the line and c is the point where the line intercepts the y axis. Its a straight line graph.
e.g. y = 2x + 10, m = 2 and it cuts the y line at + 10
In your example (A) x = 3 so y = 2(3) + 10 = 16
2007-04-05 08:26:45 · answer #3 · answered by Peter C 3 · 0⤊ 0⤋
Each of the pair in the answers corresponds to X and Y figure. Plug each one into the formula, solve it, and find the one that right side equals left side. THAT is your correct answer.
For example, A. (3, -3)
y - 3 = 2(x + 5)
-3 -3 = 2(3 + 5)
-6 = 2(8)
-6 = 16 (this is not valid)
For this reason, A is not the answer.
Do this for each of your pair.
2007-04-05 08:26:04 · answer #4 · answered by tkquestion 7 · 0⤊ 0⤋
It's B
first isolate y
y = 2(x+5) + 3
y = 2x + 10 + 3
y = 2x + 13
only B works because if x = 4
y = 2(4) + 13
y = 8+13
y = 21
x=4, y=21 <-------B!
2007-04-05 08:27:04 · answer #5 · answered by tomas 1 · 0⤊ 0⤋
B, according to my handy fx-9750G Plus Power Graphic..
2007-04-05 11:31:45 · answer #6 · answered by Tommy 6 · 0⤊ 0⤋
d but wait 4 more awncers cause im notpositive
2007-04-05 08:23:15 · answer #7 · answered by rocky 1 · 0⤊ 0⤋
The answer is B: (4,21)
2007-04-05 08:36:59 · answer #8 · answered by julie_ramrattan2003 3 · 0⤊ 0⤋
B.(4,21)
2007-04-05 08:24:37 · answer #9 · answered by Matt H 1 · 0⤊ 0⤋
B. (4,21)
2007-04-05 08:28:45 · answer #10 · answered by Zee 2 · 0⤊ 0⤋