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3 years ago

Define and give examples of x-intercept

Mathematics

2 answers:

Wewaii [24]3 years ago

7 0

Answer:

Definition: The x-intercept is the point where a line crosses the x-axis, and the y-intercept is the point where a line crosses the y-axis.

Example: From the graph, describe the x and y-intercepts using point notation. The graph crosses the x-axis at x = 1 and x = 3, therefore, we can write the x-intercepts as points (1,0) and (–3, 0). Similarly, the graph crosses the y-axis at y = 3. Its y-intercept can be written as the point (0,3).

balandron [24]3 years ago

5 0

The x intercept is also known as the domain
(3,6) in that ordered pair, 3 would be the domain

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Write an equation, in the slope intercept form, of the line with an x-intercept at (3 , 0) and a y-intercept at (0 , -5).

mamaluj [8]

Hello : let A(3,0) B(0,-5)
the slope is : (YB - YA)/(XB -XA)
(-5-0)/(0-3) = 5/3

an equation, in the slope intercept form is : y - (-5) = (5/3)(x-0)
y = (5/3)x - 5

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3 years ago

What can you conclude about the population density from the table provided? Population Area (km²) Region A 20,178 521 Region B 1

Alika [10]

Answer:

A got it right

Step-by-step explanation:

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2 years ago

Classify each polynomial and determine its degree. the polynomial 3x2 is a with a degree of . the polynomial x2y 3xy2 1 is a wit

Fofino [41]

$\rm 3x^2$ is the polynomial of one variable with second-order and $x^2y+3xy^2+1$ is the polynomial of two variables with third-order

<h3>What is polynomial?</h3>

Polynomial is the combination of variables and constants in a systematic manner with "n" number of power in ascending or descending order.

We have polynomials:

$\rm 3x^2$ and

$x^2y+3xy^2+1$

For $3x^2$

In this polynomial, the number of variables is one and the maximum power of x is 2, therefore:

This is the polynomial of one variable with second order.

In polynomial, $x^2y+3xy^2+1$ there are two variables x and y.

The maximum power of x is 3( x has a power of 2 and y has a power of 1)

This is the polynomial of two variables with third order.

Thus, $\rm 3x^2$ is the polynomial of one variable with second-order and $x^2y+3xy^2+1$ is the polynomial of two variables with third-order.

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2 years ago

Must a function that is decreasing over a given interval always be negative over that same interval? Explain.

kolbaska11 [484]

Answer:

its called common sense

Step-by-step explanation:divide negative by the positive leaving you with the commomn answer thus its subtraction

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3 years ago

Given f(x)=9-2x, find f(10). A.-11 B.11 C.29 D.-29

zaharov [31]

The given function is a linear function that decreases as the value of the

input x increases.

The value of f(10), given f(x) = 9 - 2·x is option A. -11

Reasons:

The given function is f(x) = 9 - 2·x

The output of the function is the value of f(x) for a given input x of the function.

The input value, x is substituted into the function to obtain the output value, f(x).

Given that the input, x = 10

We have;

f(10) = 9 - 2×10 = -11

Therefore, the correct option for f(10) is A. -11

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2 years ago

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