Question

Find the value of r in(4,r) (r,3) so that the slope of the line containing them is 0

Answer 1

Answer:

r = 3.

Step-by-step explanation:

Equation of a line:

The equation of a line has the following format:

$y = mx + b$

In which m is the slope.

Finding the slope of a line, given two points:

When we are given two points of a line, the slope of the line is given by the change in y divided by the change in x.

Points (4,r), (r,3)

Change in y: 3 - r

Change in x: r - 4

Slope is 0, so:

$\frac{3 - r}{r - 4} = 0$

$3 - r = 0$

$r = 3$

The value is r = 3.