Answer :
the answer for the first one is (-2,-3) because if you put a point there, then it would make a right triangle and, if ou take the x term from the higher point and the y term from the lower point and put them togeteher, then you get (-2,-3)
if you mean directly proportional where x/y=k where is x goes up, y goes up as well so try them out
first one: x/y=k 1/11=k does 3/23=k as well? no so this is not proportional
second one: x/y=k 1/2=k does 3/-10=k as well? no, so this is not proportional
third one: x/y=k 1/-6=k does 3/-22=k asl well? no, so this is not proportional
fourth one: x/y=k 1/-8=k does 3/-24=k as well? yes, so this is the proportiona one
subsitute
if x=1 and y=7
try the first
7=1+7
false so the first one doesn't work
try the second
7=1-7
false, so the second one doesnt' work
third
7=1/7
false so the third one doesn't work either
try the fourth
7=(7)(1)
7=7
true so this is the naswer
7=7 tue
if you mean directly proportional where x/y=k where is x goes up, y goes up as well so try them out
first one: x/y=k 1/11=k does 3/23=k as well? no so this is not proportional
second one: x/y=k 1/2=k does 3/-10=k as well? no, so this is not proportional
third one: x/y=k 1/-6=k does 3/-22=k asl well? no, so this is not proportional
fourth one: x/y=k 1/-8=k does 3/-24=k as well? yes, so this is the proportiona one
subsitute
if x=1 and y=7
try the first
7=1+7
false so the first one doesn't work
try the second
7=1-7
false, so the second one doesnt' work
third
7=1/7
false so the third one doesn't work either
try the fourth
7=(7)(1)
7=7
true so this is the naswer
7=7 tue
The first one should be (5, 5) or (-2, -3). This will create a 90 degree angle and giving us a right triangle. Since (-2, -3) is the only one in the options, that is the answer.
For the 2nd one, we can just divide all the values and see which table gives us the same amount for all the values.
1 / -11 = -0.0909090909
3 / -23 = -0.130434783
These aren't the same so Option A is incorrect.
The correct answer is Option D, because all of them equal -0.125.
For the last one,
When y increases by 1, x increases by 7.
Therefore the equation is y = x + 7.
For the 2nd one, we can just divide all the values and see which table gives us the same amount for all the values.
1 / -11 = -0.0909090909
3 / -23 = -0.130434783
These aren't the same so Option A is incorrect.
The correct answer is Option D, because all of them equal -0.125.
For the last one,
When y increases by 1, x increases by 7.
Therefore the equation is y = x + 7.