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Irina-Kira [14]
3 years ago
12

A line passes through (4,5) and (8,9)

Mathematics
1 answer:
PolarNik [594]3 years ago
3 0

Step-by-step explanation:

Hey there!

The equation of a st.line passing through points (4,5) and (8,9) is;

(y - y1) =  \frac{y2 - y1}{x2 - x1} (x - x1)

<u>Put</u><u> </u><u>all values</u><u>. </u>

<u>(y - 5) =  \frac{9 - 5}{8 - 4} (x - 4)</u>

<u>Simplify</u><u> </u><u>them to get equation</u><u>. </u>

<u>(y - 5) =  \frac{4}{4} (x - 4)</u>

<u>(y - 5) = 1(x - 4)</u>

<u>(y - 5) = x - 4</u>

<u>x - y + 1 = 0</u>

<u>Therefore the</u><u> </u><u>required equation</u><u> </u><u>is</u><u>:</u><u> </u><u>x</u><u> </u><u>-</u><u> </u><u>y</u><u> </u><u>+</u><u> </u><u>1</u><u>=</u><u>0</u><u>.</u>

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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