3 years ago

Explain how you could determine the vertex of the given quadratic function graphically. f(x) = (x + 2) (x -4)

Mathematics

1 answer:

bearhunter [10]3 years ago

4 0

Answer:Get the equation in the form y = ax2 + bx + c.

Calculate -b / 2a. This is the x-coordinate of the vertex.

To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y.

Step-by-step explanation:

You might be interested in

Brenda is cooking couscous. The recipe says she requires 480 grams of couscous for 4 people. How many will she need for 14?

alexgriva [62]

Answer:

$1,680\ g$

Step-by-step explanation:

we know that

Brenda requires 480 grams of couscous for 4 people

using proportion

Find out how many grams of couscous she requires for 14 people

Let

x -----> the amount of grams

$\frac{480}{4}\frac{g}{people}=\frac{x}{14}\frac{g}{people} \\\\x=14*480/4\\\\x=1,680\ g$

4 0

3 years ago

If you flipped a fair coin 18 times, about how many times would you expect heads to appear? HELP ME PLEASE!!!!!!!

Andrei [34K]

Answer:

9 or 3.8x10^-6

Step-by-step explanation:

By flipping a coin you'd look at how many times a head could appear (1/2) and multiply that by the 18 times.

Another explanation:

I'm not sure on this but would you raise 1/2 to the 18th power?

4 0

3 years ago

NEED ASAP<br><br> 1. Find the distance between (3√3, √11) and (−5√3, 5√11)

VLD [36.1K]

Answer: $\sqrt20$

Step-by-step explanation

7 0

3 years ago

X - y = 4

IrinaK [193]

Answer:

3. 6

Step-by-step explanation:

X - y = 4 ( Equation 1 )

X + y =8 ( Equation 2 )

equation 1 + equation 2

; 2x = 12

x = 12÷2

x =6

hope it helps ☺️

8 0

3 years ago

Read 2 more answers

What is 2 divided on 1000

Hoochie [10]

500. But 1000 cannot go in 2, the result would be 0.002.

4 0

3 years ago

Read 2 more answers