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FinnZ [79.3K]
2 years ago
6

Use the Quadratic Formula to find the x-intercepts (zeros) to the following equation: 0 = -2x2 - 7x + 12

Mathematics
1 answer:
IRISSAK [1]2 years ago
8 0

Answer:

The x-intercept is 8/7.

Step-by-step explanation:

There is only one x-intercept because the equation is linear. And you don't need the quadratic formula to find the x-intercepts at all. Hope this helps!!

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Y=x^2-6x+3 help write the vertex form of the equation
Artist 52 [7]

Answer:

y=(x-3)^2-6

Step-by-step explanation:

y=x^2-6x+3

This is written in the standard form of a quadratic function:

y=ax^2+bx+c

where:

  • ax² → quadratic term
  • bx → linear term
  • c → constant

You need to convert this to vertex form:

y=a(x-h)^2+k

where:

  • (h,k) → vertex

To find the vertex form, you need to find the vertex. For this, use the equation for axis of symmetry, since this line passes through the vertex:

x=-\frac{b}{2a}

Using your original equation, identify the a, b, and c terms:

a=1\\\\b=-6\\\\c=3

Insert the known values into the equation:

x=-\frac{(-6)}{2(1)}

Simplify. Two negatives make a positive:

x=\frac{6}{2} =3

X is equal to 3 (3,y). Insert the value of x into the standard form equation and solve for y:

y=3^2-6(3)+3

Simplify using PEMDAS:

y=9-18+3\\\\y=-9+3\\\\y=-6

The value of y is -6 (3,-6). Insert these values into the vertex form:

(3_{h},-6_{k})\\\\y=a(x-3)^2+(-6)

Insert the value of a and simplify:

y=(x-3)^2-6

:Done

6 0
2 years ago
Write the equation of each line using the given information.
MrRissso [65]

Answer:

See explanation.

Step-by-step explanation:

We need a point and a slope to have a point slope equation.

y-y_{1}=m(x-x_{1})

We need a slope and y-intercept to write in slope intercept form.

y=mx+b

A) y-1=\frac{1}{2}(x+4) or y=\frac{1}{2}x+3

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

C) y-1=0(x-1)

D) y=-3x+8

4 0
3 years ago
Someone help I will make you Brainly
saw5 [17]

Answer:

yep it is b

Step-by-step explanation:

8 0
2 years ago
Evaluate 1/2m - 2/3n when m = 3 and n = 8.
Anika [276]

Answer:

1/2(3)-2/3(8)

3/2-9/3

<u>3</u>-<u>9</u>

2.3

<u>9</u><u>-</u><u>3</u><u>2</u>

6

<u>-23</u>

6

7 0
3 years ago
Please show work! will mark brainlest!!!!!!!!
GarryVolchara [31]

Answer:

34cm

4+2+5+9+6+3+3+(9-4+3)

6 0
2 years ago
Read 2 more answers
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