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Chapter 13: Q. 5 (page 532)

Find the slope of the line through the points named. If the slope is not defined, write not defined.

(1, 2); (-2, 5)

Short Answer

Expert verified

The slope of the line is -1.

Step by step solution

01

Step-1 – Given

The given points are (1, 2); (-2, 5).

02

Step-2 – To determine

We have to find the slope of the line through the points (1, 2); (-2, 5).

03

Step-3 – Calculation 

We compare (1, 2); (-2, -5) with x1,y1;x2,y2.

here,

x1=1y1=2x2=鈭�2y2=5

So, slopem=y2鈭�y1x2鈭�x1=5鈭�2鈭�2鈭�1=鈭�1

It means, the slope of the line is -1.

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Most popular questions from this chapter

In Exercises 20 and 21 show that points P, Q, and R are collinear by showing that PQ and OR have the same slope.

P(-1, 3) Q(2, 7) R(8, 15)

In Exercises 20 and 21 show that points P, Q, and R are collinear by showing that PQ and OR have the same slope.

P(-1, 3) Q(2, 7) R(8, 15)

Find the slope of the line.

In Exercises 20 and 21 show that points P, Q, and R are collinear by showing that PQ and OR have the same slope.

P(-8, 6) Q(-5, 5) R(4, 2)

Find the center and the radius of the circlex2+4x+y2鈭�8y=16.

(Hint: Express the given equation in the form

x鈭�a2+y鈭�b2=r2)
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