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suter [353]
3 years ago
7

Explain how to find the slope of the line.

Mathematics
1 answer:
Marina CMI [18]3 years ago
3 0

Step-by-step explanation:

slope =  \frac{y2 - y1}{x2 - x1} \\   =  \frac{1 - 3}{6 - 2}  \\  =   \frac{ - 2}{4}  \\  =  -  \frac{1}{2}

Even if x₁ = 6, y₁ = 1 and x₂ = 2, y₂ = 3 the result remains same.

<h3>#CMIIW</h3>
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Answer:

Δ PQT ~ Δ QRS  .....{S-S-S test for similarity}...Proof is below.

Step-by-step explanation:

Given:

In Δ PQT

PQ = 30 ft

QT = 28 ft

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In Δ QRS

QR = 15 ft

RS = 14 ft

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To Prove:

Δ PQT ~ Δ QRS

Proof:

First we consider  the ratio of the sides

\frac{PQ}{QR}=\frac{30}{15} = \frac{2}{1}            ..............( 1 )

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\frac{PQ}{QR}=\frac{QT}{RS} = \frac{TP}{SQ}

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∴ Δ PQT ~ Δ QRS  .....{S-S-S test for similarity}...Proved

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