Which system of linear inequalities is represented by the graph? y > x – 2 and x – 2y < 4 y > x + 2 and x + 2y < 4 y
> x – 2 and x + 2y < 4 y > x – 2 and x + 2y < –4
2 answers:
Answer: Four graphs matching the inequalities are attached.
You will have to choose. Compare the graph you have with the ones in this answer. Look carefully at the slopes and the intercepts.
Step-by-step explanation:
The inequalites you have to choose from are a bit complicated, as the second one in each pair is not in slope intercept form. When you rewrite them, it is much easier to see the amount and direction of the slope and find the y-intercept. The 2y results in a slope of 1/2 when you divide both sides by 2
Remember, as in the first set, if you divide by a negative number, switch the direction of the inequality sign.
Please do not expect Brainly participants always to do this much work for you! (I'd appreciate a 'Brainliest' for my efforts on this one.)
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Answer: a) AB = ; b)
; c) No, they are different; d) No, they are never the same;
Step-by-step explanation:
a) A = , B =
. This multiplication is possible, because matrix A has 2 columns and matrix B has 2 rows. When those value are equal, the multiplication is possible.
AB = .
=
b) BA = .
=
c) As, we can see, parts a and b are differents.
d) With matrices, multiplication is not commutative, which means AB≠BA