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Marizza181 [45]

2 years ago

10

Find the y-intercept and the axis of symmetry of f(x)=ax^2+2ax+3.

1 answer:

Setler [38]2 years ago

7 0

Answer:

y-intercept = (0,3)

Axis of symetry is -1

Step-by-step explanation:

ax^2+2ax+3 <-- y-intercept

Axis of symetry is -b/2a

-2a/2a=-1

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Can you guys please help me..

lubasha [3.4K]

The answer is G
Hope this helps

6 0

2 years ago

What is the equation of a line that has an x-intercept of -4 and a y-intercept of 8 ?

podryga [215]

Answer:

y=2/-1+8

Step-by-step explanation:

-4= (-4,0) -4=x1 0=y1, 8= (0,8) 0=x2 8=y2
formula is, y2-y1/x2-x1
8-0/0-4=8/-4=4/-2= 2/-1
2/-1 is the slope or (m), use (-4,0) or (0,8) i used (0,8) because its easier.
(0,8), 0=x1 8=y1
formula is y-y1=m(x-x1)
y-8=2/-1(x-0) ---->distribute
y-8=2/-1x-0 --->get y alone

+8 +8

so the answer is y=2/-1+8

7 0

3 years ago

How do you solve the following for x?

EleoNora [17]

Answer:

Step-by-step explanation:

Is called a letter that stands for the number

7 0

3 years ago

Read 2 more answers

For the data set 3,3,9,12,13, the mean is 8.What is the mean absolute deviation?

aleksandrvk [35]

The answer is C: The MAD is 4. Hope that helps

8 0

3 years ago

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A hospital uses cobalt-60 in its radiotherapy treatments for cancer patients. Cobalt-60 has a half-life of 7

NeTakaya

Answer:

We have 197 g of Co-60 after 18 months.

Step-by-step explanation:

We can use the decay equation.

$M_{f}=M_{i}e^{-\lambda t}$

Where:

M(f) and M(i) are the final and initial mass respectively
λ is the decay constant (ln(2)/t(1/2))
t(1/2) is the half-life of Co
t is the time at the final amount of m

$M_{f}=228e^{-\frac{ln(2)}{7} 1.5}$

$M_{f}=197\: g$

<u>Therefore, we have 197 g of Co-60 after 18 months.</u>

I hope it helps you!

4 0

3 years ago