What's the slope of (5,9); (8,0)

Mathematics

2 answers:

liraira [26]3 years ago

7 0

Answer:

The slope is -3.

Step-by-step explanation:

To find the slope, you need to plug in the values of x and y into the slope formula.

y2 - y1/ x2 - x1

0 - 9 / 8 -5

-9/3

= -3

motikmotik3 years ago

4 0

here's the solution,

slope of the line

=》

$\frac{y2 - y1}{x2 - x1}$

=》

$\frac{0 - 9}{8 - 5}$

=》

$\frac{ - 9}{3}$

=》

$- 3$

so, slope of the line is, -3

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Another example: as x gets closer to x = 4 from the right hand side, the y value gets closer to y = 4. This y value is different if you approach x = 0 from the left side (y would approach y = 1/2)

Use examples like this and you'll get the results you see in "figure 1"

For any function values, you'll look for actual points on the graph. A point does not exist if there is an open circle. There is an open circle at x = 2 for instance, so that's why f(2) = UND. On the other hand, f(0) is defined and it is equal to 4 as the point (0,4) is on the function curve.

=======================================================

Problem 2

This is basically an extension of problem 1. The same idea applies. See "figure 2" (in the attached images) for the answers.