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3 years ago

State the following characteristics of the parab-

Mathematics

1 answer:

Damm [24]3 years ago

6 0

Axis of symmetry- x=-1

-b/2a

Mark brainliest please

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What are the coordinates of the x-intercepts of the parabola y = x² - 8x + 15?

tamaranim1 [39]

Answer:

(3, 0) and (5, 0)

Step-by-step explanation:

we have

$y=x^{2}-8x+15$

we know that

The x-intercepts are the values of x when the value of y is equal to zero

For y=0

$x^{2}-8x+15=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}-8x+15=0$

$a=1\\b=-8\\c=15$

substitute in the formula

$x=\frac{-(-8)\pm\sqrt{-8^{2}-4(1)(15)}} {2(1)}$

$x=\frac{8\pm\sqrt{4}} {2}$

$x=\frac{8\pm2} {2}$

$x=\frac{8+2} {2}=5$

$x=\frac{8-2} {2}=3$

x=3, x=5

therefore

The x-intercepts are (3,0) and (5,0)

4 0

3 years ago

How do you solve 6=3+5(y-2)

Harlamova29_29 [7]

Answer:

y= 2,75

Step-by-step explanation:

6 = 3 + 5 (y-2)

6=8(y-2)

6/8=y-2

¾=y-2

0,75+2=y

y= 2,75

4 0

3 years ago

Hillary is sharing a box of candy with her friends. If there are b pieces of candy in the box being split between 5 people, whic

Inga [223]

Answer: C

Step-by-step explanation:

Basically you have your candy and you split it up, which is dividing, and give the groups of candy to your friends.

7 0

3 years ago

Use the distributive property to write an equivalent expression for each expression below.

IRINA_888 [86]

A.36x-27y-6

B.12x-6y+2

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4 years ago

Which direction does the decimal point move in when you divide by powers of 10 greater than 0?

4vir4ik [10]

Answer:

the left side is the answer

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2 years ago

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