2006-07-27 13:46:36 · 5 answers · asked by schoolboi_000 1 in Science & Mathematics ➔ Mathematics
Plug in the numbers in for x and see what you get for y.
First: -2:
y = -2(-2) + 7
y = 4 + 7
y = 11
Next: 0
y = -2(0) + 7
y = 0 + 7
y = 7
Next: 4
y = -2(4) + 7
y = -8 + 7
y = -1
Next: 7
y = -2(7) + 7
y = -14 + 7
y = -7
So your answers are {11, 7, -1, -7} respectively.
2006-07-27 13:53:39 · answer #1 · answered by Puzzling 7 · 1⤊ 0⤋
Y= -2x+ 7
domain mean, "X"
when x=-2,
then Y=-2x+7
Y=-2(-2)+7
Y=11
when x=0
then Y=-2X + 7
Y=-2(0) +7
Y=7
when x=4
Y=-2x +7
Y=-2(4) + 7
Y=-1
when x=7
Y=-2X + 7
Y=-2(7) + 7
Y= -7
2006-07-27 20:55:46 · answer #2 · answered by Sona 1 · 0⤊ 0⤋
y = -2x + 7
y = -2(-2) + 7 = 4 + 7 = 11
y = -2(0) + 7 = 0 + 7 = 7
y = -2(4) + 7 = -8 + 7 = -1
y = -2(7) + 7 = -14 + 7 = -7
Range {11,7,-1,-7}
2006-07-27 21:47:47 · answer #3 · answered by Sherman81 6 · 0⤊ 0⤋
just plug your domains into x and solve
Answer: 11, 7, -1, -7
2006-07-27 20:55:20 · answer #4 · answered by minniemm33 2 · 0⤊ 0⤋
if you are such a school boy...then why don't you do it?
2006-07-27 20:50:51 · answer #5 · answered by Shelly Girl 2 · 0⤊ 0⤋