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3 years ago

Find the vertex of the parabola.

Mathematics

2 answers:

riadik2000 [5.3K]3 years ago

5 0

Answer:

Correct answer is B. (-2,4)

Step-by-step explanation:

Given: y = 2x^2 + 8x + 12

if x = 2,

Use substitution: y = 2(-2)^2 + 8(-2) + 12

y = 8 - 16 + 12

y = -8 + 12

y = 4

So, (-2, 4) would be your answer.

I hope this helps!!!

Elan Coil [88]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

If I’m 24 in 1979 what year was I born in?

Elan Coil [88]

Answer:

1950

Step-by-step explanation:

If you were 24 in 1974, simply subtract 24 from 1974 to find what year you were born in:

1974-24= 1950

Of course, it may be +/- 1 depending on what month you were born in, and what month it is now!

<em>I hope this helps! :)</em>

8 0

3 years ago

What is the common denominator for ¾ and 9/10?

Contact [7]

Answer:

20 so the fractions would be 3/4=15/20 and 9/10=18/20

Step-by-step explanation:

because 4 x 5 = 20 and 10 x 2 = 20

8 0

3 years ago

Read 2 more answers

Determine the amplitude (A), period (P), and phase shift (PS) of the function f(x)= 3sin(x-4)+9

Tpy6a [65]

ANSWER

D.
$A=3,P=2\pi,PS=(4,9)$

EXPLANATION

The given function is

$f(x) = 3 \sin(x - 4) + 9$

Comparing to the general form of a trigonometric sine function,

$f(x) = A \sin(Bx-C)+D$

$A=3$
The amplitude is absolute value of A

$|A| = |3| = 3$

$B=1$

The period is given by

$p = \frac{2\pi}{ B}$

$p = \frac{2\pi}{ 1} = 2\pi$

$C=4$

is a shift to the right of 4 units.

and

$D=9$

is an upward shift of 9 units

Therefore the phase shift is (4,9).

The correct answer is D

6 0

3 years ago

Y=x^2-2x-2 , find the vertex, y-intercept, and axis of symmetry

Stels [109]

Answer:

vertex=(1,-3)

y-intercept=(0,-2)

x-intercept=(1,+\sqrt{3},0)

axis of symmetry= 1

3 0

3 years ago

HELP ME PLEASE!!!!!

katen-ka-za [31]

Answer: d≤69

Step-by-step explanation:

You would plug in all the values for d into the inequality

40(81) + 240 ≤ 3000

40(81) + 240 = 3000

3240+240=3000

3480=3000 false

40(75) + 240 ≤ 3000

40(75) + 240 = 3000

3000+240=3000

3240=3000 false

40(69) + 240 ≤ 3000

40(69) + 240 = 3000

2760+240=3000

3000=3000 true

You don't need to try the last one because you already found this one!

6 0

2 years ago