Find an equation of the line passing through the pair of points (5,4) and (4,5). Write in slope intercept form

1 answer:

3 0

$\text{Slope =} \dfrac{Y_2-Y_1}{X_2 - X_1}$

$\text{Slope =} \dfrac{5-4}{4-5} = -1$

Plug slope in the general equation : y = mx + b

y = -x + b

5 = -4 + b

b = 9

Plug y-intercept int the general equation:

y = -x + 9

Answer: y = -x + 9

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9) 80 is 20% of what number?

sweet-ann [11.9K]

<h3><u>Answer:</u></h3>

400 is the number.

<h3><u>Step-by-step explanation:</u></h3>

<em>There can be many ways to find the number.</em><em> I have found the number with the help of fractions and multiplication. </em><em>Below is the solution to your problem.</em>

80 = 20/100
=> 5 x 80 = 20 x 5/100
=> 400

<h3><u>Conclusion:</u></h3>

<em>Hence, 80 is 20% of 400. </em><em>I hope my method helped you.</em>

$BrainiacUser1357$

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