3 years ago

Is (1, 4) a solution to the equation y = 7x?

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

8 0

Answer:

not a solution

Step-by-step explanation:

Substitute the point into the equation and see if it is true

y = 7x

4 = 7*1

4 = 7

This is not true so it is not a solution

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How do You supposed to do this i need many method to do it.

defon

I like the substitution method. Which is when you make one equation equal only x or y and plug it into the other equation)

There is also the graphing method. If you graphed it, it might not be quite as accurate (at least on hand, on computer you would be pretty exact)

Then there is the elimination method. You multiply one of the equations by a coefficient so that you can eliminate x or y from the equation.

4 0

3 years ago

Laura’s printer takes 5 minutes to print 85 pages.

evablogger [386]

Answer:

17.

Step-by-step explanation:

Divide 85 by 5 to find the unit rate:

$\frac{85}{5} =17$