All categories

3 years ago

What is the root when talking about a quadratic equation

Mathematics

2 answers:

Blizzard [7]3 years ago

8 0

The root is the x intercepts or the zeros of the problem

If I were to graph

(x-5)(x+4)=0

We need a number for x which makes this equation 0

The numbers are 5 or -4

These are the x intercepts of the parabola or roots

e-lub [12.9K]3 years ago

6 0

Answer:

The roots of a function are the x-intercepts. By definition, the y-coordinate of points lying on the x-axis is zero. Therefore, to find the roots of a quadratic function, we set f (x) = 0, and solve the equation, ax2 + bx + c = 0.

Step-by-step explanation:

You might be interested in

Find the perimeter of the isosceles trapezoid

Genrish500 [490]

Answer:

A =136 cm^2

Step-by-step explanation:

The area of a trapezoid is given by

A = 1/2 (b1+b2) *h where b1 and b2 are the lengths of the bases and h is the height

A = 1/2( 22+12) *8

A = 1/2 ( 34)*8

A =136 cm^2

4 0

3 years ago

Read 2 more answers

Consider the following 8 numbers, where one labelled x is unknown.

BARSIC [14]

Step-by-step explanation:

this may be the answer

but I am not that sure

5 0

3 years ago

Read 2 more answers

If a letter was chosen at random from the word SPORTSMANSHIP, which of the following is closest to the probability that it would

Gnom [1K]

There are 3 vowels out of 13 letters
P(vowel) = 3/13

7 0

3 years ago

The sum of two numbers is 55. One number is 4 times as large as the other. What are the numbers? PLEASE HELP

Cloud [144]

11 and 44 because 44 is 4 times as much bigger than 11

8 0

3 years ago

In the diagram, a building cast a 35-ft shadow and a flagpole casts an 8-ft shadow. If the the flagpole is 18 ft tall, how tall

xxTIMURxx [149]

Answer: 78.8 ft

<u>Step-by-step explanation:</u>

Similar triangles have proportional sides.

$\dfrac{\text{building shadow}}{\text{building height}}=\dfrac{\text{flagpole shadow}}{\text{flagpole height}}\\\\\\\dfrac{35}{\text{building height}}=\dfrac{8}{18}\\\\\\\dfrac{35\times 18}{8}=\text{building height}\\\\\\\dfrac{35\times 9}{4}=\text{building height}\\\\\\\dfrac{315}{4}=\text{building height}\\\\\\\boxed{78.75=\text{building height}}$

3 0

3 years ago