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Ira Lisetskai [31]
3 years ago
12

What is 5x-4y=-7 (-20,-8)in slope intercept form

Mathematics
1 answer:
forsale [732]3 years ago
4 0

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

y = mx + b

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis

We have the following equation:

5x-4y = -7

We manipulate algebraically to write the equation of the slope-intersection form:

-4y = -7-5x\\4y = 5x + 7\\y = \frac {5} {4} x + \frac {7} {4}

We check if the given point belongs to the equation:

y = \frac {5} {4} (- 20) + \frac {7} {4}\\y = -25 + \frac {7} {4}\\y = \frac {-100 + 7} {4}\\y = - \frac {93} {4}

The point does not belong to the equation.

ANswer:

y = \frac {5} {4} x + \frac {7} {4}

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A leaky faucet is losing water and is filling a 8-gallon bucket every 25 hours.At this rate,how many gallons of water will the f
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3 years ago
State how many imaginary and real zeros the function has.
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Answer:

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Step-by-step explanation:

Given the polynomial:

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it can be reordered as follows

(x^5 + 2*x^3 + x ) + (7*x^4  + 14*x^2 + 7)

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Taking again the greatest common factor

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Replacing x^2 = y in the second parenthesis

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Coming back to x variable

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