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Mathematics 16 Online
OpenStudy (anonymous):

WILL FAN AND MEDAL

OpenStudy (anonymous):

Select the inequality that corresponds to the given graph. 4x − 3y > − 12 x + 4y > 4 4x − 2y < − 8 2x + 4y ≥ − 16

OpenStudy (anonymous):

I think it's c plz let me know if i'm right

OpenStudy (welshfella):

first the slope of this graph is negative like\

OpenStudy (anonymous):

so the answer is c

OpenStudy (anonymous):

@Roseamora ya im pretty sure it is but what grade for is this?

OpenStudy (anonymous):

9th

OpenStudy (welshfella):

no find the slope and you can then get the equation in the form y = mx + b where m = slope and b = intersection on y axis

OpenStudy (welshfella):

if you check the graph slope is -4 / 8 = -1/2 and intersect on y axis is -4

OpenStudy (anonymous):

is this grade 9 in America or in Canada, or is it somewhere else

OpenStudy (welshfella):

m = -1/2 and b = -4 so we have y = (-1/2)x - 4 now we need to check which of the options is equaivalent to this you'll need to multiply each term by the same factor

OpenStudy (anonymous):

so it would be "A"

OpenStudy (welshfella):

no - you are guessing try multiplying the equation by 4 then rearranging will give you one of the options ( except you'l have = instead of the inequality sign)

OpenStudy (welshfella):

y = (-1/2)x - 4 multiplying by 4:- 4y = -2x - 16

OpenStudy (welshfella):

now rearrange a little and you'll have the required operation the inequality sign is ≥ because the line is unbroken and the area is shaded above the line. 'greater or equal to'

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