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OpenStudy (kaylardz0405):
Which values of x and y are solutions to the open sentence?
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OpenStudy (kaylardz0405):
\[5y \ge 3x+4\]
OpenStudy (danjs):
Since you have one equation with 2 variables, you can not solve for a specific solution, the answer will have restrictions
OpenStudy (danjs):
solve for Y, and say , all Y , such that, ygreater than or equal to .....
OpenStudy (kaylardz0405):
A.
x = 1, y = 1
B.
x = 1, y = 2
C.
x = 2, y = 1
D.
x = 4, y = 3
OpenStudy (welshfella):
5y >= 3x + 4
divide through by 5
y >= 0.6x + 0.8
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OpenStudy (welshfella):
now plug in the values in the 4 options to see which one or ones fit
OpenStudy (kaylardz0405):
is it c
OpenStudy (welshfella):
x = 2 y = 1
y = 1
0.6(2) + 0.8 = 2
no - here y is < 0.6x + 0.8
OpenStudy (welshfella):
you need y to be greater or equal to 0.6x + 0.8
OpenStudy (kaylardz0405):
so then D
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OpenStudy (welshfella):
i think you are guessing
plug in the values and see if they fit
try B
OpenStudy (welshfella):
for B y = 2
what does 0.6x + 0.8 equal ( here x = 1)
OpenStudy (kaylardz0405):
but isnt it 5*4 be one step if the answer was D
OpenStudy (kaylardz0405):
im kinda confused
OpenStudy (welshfella):
|dw:1441137506968:dw|
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