A line has a slope of 8 and includes the points (1, z) and (2,8). What is the value of z?

Mathematics

1 answer:

NISA [10]3 years ago

6 0

The value of z is zero

Step-by-step explanation:

The slope is the steepness of the line.

The formula for slope is given by:

$m=\frac{y_2-y_1}{x_2-x_1}\\Here\\(x_1,y_1)\ are\ the\ coordinates\ of\ first\ point\ on\ line\\(x_2,y_2)\ are\ the\ coordinates\ of\ second\ point\ on\ line$

Here

(x1,y1) = (1,z)

(x2,y2) = (2,8)

So,

$m=\frac{y_2-y_1}{x_2-x_1}\\8 = \frac{8-z}{2-1}\\8=\frac{8-z}{1}\\8-8 = -z\\z = 0$

The value of z is zero

Keywords: slope, Line

Learn more about slope at:

#LearnwithBrainly

You might be interested in

(-1,0) and (4,-5) slope intercept form

iris [78.8K]

The picture is your answer.

6 0

3 years ago

At to-go pizza each pizza cost $12 and each small salad costs $2. A delivery charge of $3 is added to every order. How much woul

MariettaO [177]

First, let's make some variables then make an expression.

Let x = the number of pizzas
Let y = the number of salads

Then 12x = the price for x pizzas
Then 2y = the price y pizzas

Now we can make our expression.

We combine the costs for the pizzas and salads and delivery charge is added.

12x + 2y + 3

Now we have our expression. Replace the x with how many pizzas you bought and replace the y with how many salads you bought.

How much would 6 pizzas and 3 small salads would cost?

12(6) + 2(3) + 3 =
72 + 6 + 3 =
78 + 3 =
81

The answer to this question is $81.

EDIT:

I want to give a thank you to Irspow for finding my error!

6 0

3 years ago

Read 2 more answers

Help:) (no links please)!!!!

ICE Princess25 [194]

The answer is 9 miles!

3 0

3 years ago

Please help :) I have no clue & math isn’t my strong subject.

melisa1 [442]

Equation of a line that is perpendicular to given line is $y=\frac{-7}{4} x+\frac{7}{4}$ .