Which table of values can be used to graph the function.
y = -4x + 3?
A.)
X Y
-1 -1
0 3
1 7
2 11
B.)
X Y
-3 -9
-1 -1
1 7
3 15
C.
X Y
0 3
1 -1
2 -5
3 -9
D.)
X Y
0 3
1 7
2 11
3 15
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jimthompson5910 (jim_thompson5910):
hint: plug in x = 1
jimthompson5910 (jim_thompson5910):
tell me what you get when you do
OpenStudy (anonymous):
x=1?
OpenStudy (shamil98):
y = -4x + 3
for when x = 1
y = -4(1) +3
evaluate it
jimthompson5910 (jim_thompson5910):
y = -4x + 3
y = -4(1) + 3 ... plug in x = 1 (ie replace x with 1)
y = ???
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OpenStudy (anonymous):
-4(1)**
OpenStudy (anonymous):
-1? correct?
jimthompson5910 (jim_thompson5910):
so if x = 1, then y is y = -1
jimthompson5910 (jim_thompson5910):
therefore, one row should be 1 -1
OpenStudy (anonymous):
y=-4(1)+3
y= -4 + 3
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OpenStudy (shamil98):
now just look at which table has that and you have your answer
OpenStudy (anonymous):
there is no table for x = 1 and y= -1.....
jimthompson5910 (jim_thompson5910):
yes there is
OpenStudy (shamil98):
X Y
0 3
1 -1
2 -5
3 -9
jimthompson5910 (jim_thompson5910):
look for a table where it has 1 in the x column and -1 in the y column (for the same row)
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