Write an equation of each line in standard form with integer coefficients. y=4.2x+1.8

Mathematics

1 answer:

Firlakuza [10]3 years ago

3 0

Answer: -21x + 5y = 9

Step-by-step explanation:

The standard form says that Ax + By=C

So to covert y = 4.2x + 1.8 into subtract 4.2 from both sides.

y = 4.2x + 1.8

-4.2x -4.2x

-4.2x + 1y = 1.8 Now it is written in standard form and to make the decimals integers we will multiply both sides by 10.

-4.2x(10) + 1y(10) = 1.8(10)

-42x + 10y = 18 which reduces to -21x + 5y = 9

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