1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Phoenix [80]
4 years ago
6

Find all the x intercepts and y intercepts for the equation f(x) = 2x^2 - 16

Mathematics
1 answer:
romanna [79]4 years ago
4 0
To find y intercepts you have to solve for when x=0.
f(0)=2(0)^2-16
f(0)=0-16
f(0)= -16
y-intercept is (0,-16)
To find x intercepts you have to solve for when f(x)=0.
0=2x^2-16
16=2x^2
8=x^2
+or- 2sqrt(2)=x
X intercepts are (2sqrt(2),0) (-2sqrt(2),0)

If you need any more help or need more explanation just message me.
You might be interested in
Which would help you file a claim for home insurance?
SCORPION-xisa [38]
Should be C a home inventory so they can see what was taken or destroyed
hope i helped!
6 0
3 years ago
If f(x) =1/x and g(x) = x - 2 what is f(g(x)) when X = 1​
Fed [463]

Answer:

f(g(x)) = -1

Step-by-step explanation:

f(x) =  \frac{1}{x}  \\  \\ g(x) = x - 2 \\  \\  \implies \: f(g(x)) =  \frac{1}{x - 2}  \\  \\  \implies \: f(g(1)) =  \frac{1}{1 - 2} \\  \\  \implies \: f(g(1)) =  \frac{1}{ - 1} \\  \\  \implies \: f(g(1)) =   - 1

8 0
2 years ago
2. Saul invested an average of $425 per month since age 30 in various securities for his
BabaBlast [244]

Answer:

$507.30

Step-by-step explanation:

-Given the monthly deposits are $425 and the interest rate is 3.5% for 30 years.

-The amount of the investment after 30 years is calculated as;

A=P(1+i/n)^n, n=time \ in \ months\\\\=425(1+0.035/12)^{30\times 12}\\\\=1212.65

-Assuming Saul started saving at age 20, his investment term will be 40 yrs.

-His investment amount is thus:

A=P(1+i/n)^n, n=time \ in \ months\\\\=425(1+0.035/12)^{40\times 12}\\\\=1719.95

#We subtract to find how much more he would have if he started saving at 20;

=A_{20}-A_{30}\\\\=1719.95-1212.65\\\\=507.30

Hence, Saul would have $507.30 more had he started saving 10 years earlier.

5 0
4 years ago
Write the point-slope equation of the line that passes through(3,5) and (7,1)
Liono4ka [1.6K]

Answer:   y - 1 = –(x –7)

or   y –5 = –1(x –3)

The attachment shows the graph of these equations (identical)

Step-by-step explanation:

The basic form for a point-slope equation is

y - b = m(x - a)

a is the x-value from the given coordinate,  b is the y-value form the given coordinate,  m is the slope. x and y are the variables in the function.

To find the slope, m, use the given coordinates. Get the difference in the y-values and divide by the difference in the x-values. This is "rise over run."

Subtract the first coordinate from the second coordinate.

Given coordinate points: ​(3​,5) and ​(7​,1)    substitute values:

m= 1 –5 / 7 –3  becomes  m= –4/4   so the slope, m = –4/4

That is –1  The "1" is "understood," so only the negative sign represents the slope  in the equation

To write the equation:  Take the basic form, substitute b and a values from either given coordinate. And use the value of m we just calculated.

y - b = m(x - a)  Using the second coordinate: (7,1)

y - 1 = –(x –7)

or using the first coordinate:

y –5 = –(x –3)

5 0
3 years ago
Find the arithmetic mean of the sales per day in a fair price shop in a week.
BabaBlast [244]

Answer:

11060.83

Step-by-step explanation:

Sum = 10000 + 10250 + 10790 + 9865 + 15350 + 10110

= 66365

No. of days (N) = 6

Arithmetic mean = Sum/ N

= 66365/6

= 11060.83

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of x?<br><br> Enter your answer in the box.
    7·1 answer
  • An 18% discount on a watch saved a shopper $72. Find the price of the watch before the discount
    9·1 answer
  • At a snack stand, a milkshake costs $1.49, a cheeseburger costs $3.29, and an order of curly fries costs $2.79. Hong is going to
    11·2 answers
  • joe drove 408 miles using 16 gallons of gas at this ratr how many mokrs would he drive using 11 gallons of gas
    11·2 answers
  • Write an equation in point slope form for the line that has a slope of 4/3 and contains the point (9,5)
    8·1 answer
  • The volume of a drop of a liquid is .000047 liter. Write the liquid in scientific notation
    12·1 answer
  • How to find x in a triangle with exterior angles
    9·1 answer
  • What’s the positive square root of 9
    13·2 answers
  • On a two question true or false quiz what is the probability of guessing both answer answer correctly
    6·1 answer
  • 2.5 x 10⁻⁴<br> Give an explanation on how to do the answer and subject please for brainliest
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!