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2 years ago

What polynomial function could be represented by the graph below

Mathematics

2 answers:

zzz [600]2 years ago

7 0

Answer: (B). F(x) = 2x² + 2x - 4

Step-by-step explanation:

Let us think about the parent function F(x) = x² to pick our answer.

Options A and C have only shifted 2 units down (showed by the "-2" at the end) and the function graphed is shifted four units down.

Between options B and D, one is shifted 2 units to the right, and one is shifted 2 units to the left. We need the one shifted 2 units to the left. This is shown by the "+2x" in option B meaning it is our answer.

kotegsom [21]2 years ago

3 0

Answer:

(B). F(X)=2x^2+2x-4

Step-by-step explanation:

-4 means it passes through -4 at the y axis

B and D have -4

graph passes thru x axis at -2 and 1

if you enter x = -2 or 1 in the formula

(B). F(X)=2x^2+2x-4

you get 0

it's not D because when you enter -2 or 1 for x

you don't get 0

you get 8 and -4

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3 years ago

find the equation of the sides of an isosceles right angled triangle whose vertex is (-2,-3) and the base is on the line x=0

Serggg [28]

Answer:

AC:y=x-1 CB:y=-x-5 AB:x=0

Step-by-step explanation:

Consider the triangle. The base AB is on the line x=0, the vertex C is (-2,-3)

The side AC is equal to BC. The angle ACB is 90 degrees. If the base is on the line x=o, it is on the axis Y.Explore the distance from the point C to the AB

c(-2,-3), the distance to the axis Y is equal to the modul of the coordinate x (-2), it is 2. The coordinates of point projected by the point C to the axis Y is N(0,-3). The modul of the height is 2, the height of the isosceles triangle to the base is the bisectrix, so the angle BCA is 90/2=45degrees, CBA is 180-90-45=45 degrees too

the heigt CN is equal to side NB, NB=2

Suppose B is (0,y) (x=0 because the base is on this line)

THe modul of the vector NB is equal to sqrt ((0-0)^2+(y+3)^2)= 2

modul (y+3)= 2

y=-1 or y=-5

(0,-1), (0,-5) - two points, one of them (suppose B) is (0,-5) when A is (0,-1) (A is remote from the point N on the same distance with B, because AB is the median too)

Find CB and AC

Use the equation for AC

(x-0)/(-2-0)= (y+1)/(-3+1)

x/-2= (y+1)/-2

x=y+1

y=x-1

For CB

(x-0)/ (-2-0)= (y+5)/ (-3-(-5))

x/-2= (y+5)/2

-x=y+5

y=-x-5

7 0

2 years ago

What is 2.5 x 7/10 =? and how did you get the answers?

Ivan

Answer:

1.75 or $\frac{35}{2}$

Step-by-step explanation:

2.5 * 7/10 is just like 2.5 * 0.7

so 2.5 * 0.7 = 1.75

You could also convert 2.5 to fraction which is 25/10

so you would have $\frac{25}{10} * \frac{7}{10}$ = $\frac{175}{100}$ reduced would equal $\frac{35}{2}$

How this helps you! :)

Could you please mark this answer as brainiest?

It would help me!

Thank you!

3 0

2 years ago