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3 years ago

Can someone help with this question??

Mathematics

2 answers:

Luba_88 [7]3 years ago

5 0

Answer:

see explanation

Step-by-step explanation:

The x- intercepts are the points on the x- axis where the graph crosses.

The graph does not cross the x- axis thus there are no x- intercepts

The y- intercept is the point on the y- axis where the graph crosses.

The y- intercept is - 6

(c)

The vertex is the turning point of the graph, in this case ∩

The vertex = (2, - 2 )

(d)

The axis of symmetry is a vertical line passing through the vertex.

The equation of the axis of symmetry is x = 2

Step2247 [10]3 years ago

4 0

Answer:

Step-by-step explanation:

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Hi, can someone please help, and possibly explain the answer please.

mr_godi [17]

Answer:

$x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

Step-by-step explanation:

Quadratic formula: $x=\frac{-b\±\sqrt{b^2-4ac} }{2a}$ when the equation is $0=ax^2+bx+c$

The given equation is $1=-2x+3x^2+1$ . Let's first arrange this so its format looks like $y=ax^2+bx+c$ :

$1=-2x+3x^2+1$

$1=3x^2-2x+1$

Subtract 1 from both sides of the equation

$1-1=3x^2-2x+1-1\\0=3x^2-2x+0$

Now, we can easily identify 3 as a, -2 as b and 0 as c. Plug these into the quadratic formula:

$x=\frac{-b\±\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

I hope this helps!

8 0

3 years ago

Select following expressions that are equivalent to 10.

kotykmax [81]

Answer:

Step-by-step explanation:

1,2,5

6 0

3 years ago

What is y in the equation 7/5y=3-1/5

enot [183]

Answer:2

Step-by-step explanation:first you subtract 3 and 1/5 and you'll get 2 4/5 then make that an improper fraction which will be 14/5 and then flip your 7/5 and multiply both sides by it so your 7/5 will be multiplied by 5/7 and they will cancel out the you take 14/5 and multiply it by 5/7 and you'll get y=2

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3 years ago

COS2A+ cos2 A cot2A =cot 2 A

Kryger [21]

Answer:

a= (π/4) + (kπ/2)

Step-by-step explanation:

I have attached the explanation above. hopefully this will help