What is the x - and y - intercepts of -3y = 7x - 21
1 answer:
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Explanation:
Remember: we have to isolate the variable x, so that means we have to get x by itself.
Step 1:
Let’s look at our equation:
Let’s subtract 2x from both sides of the equation, since our goal is to isolate the variable. You could also subtract 6x from both sides, but you would end up with a negative number, and I find it easier to deal with positive numbers.
Step 2:
Now, let’s subtract 57 from both sides of our equation.
Step 3:
Since we have to isolate x, let’s divide both sides of the equation by 4.
Our final answer: x = 64.5
None of your options is the correct answer. Notify your teacher, tutor, etc. since there none of the options are correct.
Answer:
The missing value is 2
Step-by-step explanation:
A direct variation satisfies the equation .
Since the point (-18, 12) lies on this line, it must satisfy this equation.
Hence the equation of this line is
Now we substitute x=-3 to find y.
Therefore the missing value is 2
