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3 years ago

How many roots does the graph polynomial function have?

Mathematics

2 answers:

lisov135 [29]3 years ago

6 0

The graph crosses the x axis 3 times so there are 3 roots.

B

sergejj [24]3 years ago

3 0

Answer:

The number of roots of the graph is 3

B is correct.

Step-by-step explanation:

We are given a graph of polynomial.

Graph start from negative infinity and end at positive infinity.

The degree of polynomial must be odd.

In graph, we can see it cuts at three points

(-6,0) (-2,0) (-1,0)

This graph has three x-intercept.

Number of x-intercept is equivalent to real roots of the polynomial.

This graph is cubic polynomial because it has three x-intercept.

Hence, The number of roots of the graph is 3

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Please help I’m struggling so bad

Anastaziya [24]

Answer:

a) (100,70)

b) the point of intersection means that Auto-Loans and Rent-a-Car companies will both have a daily cost of $70 when the distance driven is 100km.

c) Auto-Loans: y = 1/2x+20

Rent-a-Car: y = 1/5x+50

d) this means that the third company would have a y-intercept of 0 (its daily cost and distance would start at 0) and it would also have a daily cost of $70 when the distance driven is 100km. this would also mean that the third company's line would have a slope of 7/10

Third company's line: y=7/10x+0

(I'm sorry if I got anything wrong, but I hope this helps!)

Step-by-step explanation:

a) the point of intersection is where the two lines meet

this is at (100, 70)

b) in the context of this problem, the point of intersection means that Auto-Loans and Rent-a-Car companies will both have a daily cost of $70 when the distance driven is 100km.

c) Auto-Loans: y = 1/2x+20

Rent-a-Car: y = 1/5x+50

*this is because the slope of a line can be found by rise/run, and the y-intercept can be found by where it is located on the y-axis, since x would be 0.)

(for example, for Auto-Loans, the slope would be rise/run which in this case would be 10/20 or 1/2. the y-intercept is 20 since the y is 20 when it is on the y-axis).

d) if a third company's line starts at (0,0) and has the same point of intersection, this means that the third company would have a y-intercept of 0 (its daily cost and distance would start at 0) and it would also have a daily cost of $70 when the distance driven is 100km. this would also mean that the third company's line would have a slope of 7/10

Third company's line: y=7/10x+0

3 0

3 years ago

Which is an equation in point slope form for the line that passes through the points ( - 1 , 4 ) and ( 3 , - 4 )

Svetlanka [38]

Answer:

$y = - 2x + 2$

Step-by-step explanation:

Explained all in my picture

8 0

3 years ago

Read 2 more answers

Could someone please help me with this, I’ve been stressed over it all day, I just have 2 left.

Allisa [31]

Answer:

hi! sorry i don't know the answer but u might want to crop the picture since ur name is at the top u don't have to but just for safety

7 0

3 years ago

The given figure is a solid object formed by a cylinder and a hemisphere. If the total length of that solid object is 64 cm and

VARVARA [1.3K]

The total surface area of the solid object is 2660.925 square cm the answer is 2660.925 square cm.

<h3>What is a cylinder?</h3>

In geometry, it is defined as the three-dimensional shape having two circular shapes at a distance called the height of the cylinder.

We know the volume of the cylinder is given by:

$\rm V = \pi r^2 h$

The surface area of the

= surface area of half sphere + surface area of the cylinder - surface area

of one circular base

The radius r = (64-50)/2 = 7 cm

= (1/2)[4π(7)²] + 2π(7)(50) + 2π(7)² - π(7)²

= (1/2)[615.75] + 2506.99 - 153.94

= 307.875 + 2506.99 - 153.94

= 2660.925 square cm

Thus, the total surface area of the solid object is 2660.925 square cm the answer is 2660.925 square cm.

Learn more about the cylinder here:

brainly.com/question/3216899

#SPJ1

8 0

2 years ago

The length of a rectangular garden is 15 feet longer than its width. if the area of the garden is 154 square feet, what are the

Advocard [28]

The length would be 22 ft.
The width would be 7 ft.
A=lw
A=22(7)
A=154 ft^2

5 0

3 years ago