Please explain thoroughly so I understand. Will mark genuine answer as brainliest.
1 answer:
Answer:
B
Step-by-step explanation:
Easiest way is to use process of elimination by plugging in x numbers from the table in the equation to find the y and see which one matches.
Plug in 10 for x and y should be -1
Check A:
Not A, doesn't equal -1
Check B:
Correct, might be B
Check another point (20,14):
Correct, it is B.
You can check other 2 and see that they are wrong.
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First we must change these numbers to improper fractions:
So then we set it up:
÷
When we divide fractions like this, we must flip the second fraction and change the sign from division to multiplication like so:
Then we solve:
Then if we divide the numerator and the denominator by 9, we get:
or, in mixed-number form,
.