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
svet-max [94.6K]
3 years ago
11

I need another graphing quadratic pointer f(x)=x square -18x +80

Mathematics
1 answer:
swat323 years ago
4 0
F(x)=x^2-18x+80
ok so remember
you need to know
1. degree of function- tells what kind of graph
2. leading term- tells which direction graph opens
3. xintercept and y intercepts
4. vertex

ok so in form
f(x)=ax^2+bx+c 

1.
degree, 2nd degree so parabola

2.
a=leading terma=+1 in this case so the graph opens up and is a normal graph

3.xintercept is where graph crosses x axis or where y=0, y=f(x) so
0=x^2-18x+80
0=(x-8)(x-10)
xints are (8,0) and (10,0)
y intercept is where cross y axis or where x=0
set x=0
yint=0^2-18(0)+80
yint=80
yint=(0,80)

4. vertex (vertex is highest point if graph opens down, and lowest point if graph opens up)
if in form f(x)=ax^2+bx+c, the x value of the vertex is given by -b/(2a) so
b=-18
a=1
-(-18)/2(1)
18/2=9
input
9^2-18(9)+80=yvalue
-1=yvalue
vertex=(9,-1)

so we have
1. graph is parabola
2. opens up
3. crosses through points (8,0), (10,0), (0,80)
4. vertex=(9,-1)

so we plot the points (8,0), (10,0), (0,80) and (9,-1)  and draw a prabola opening up with (9,-1) as the highest point
attachment below ( it might be hard to graph (0,80) since it is so high up so you don't have to graph that point)


You might be interested in
Suppose you deposited ​$100 in a savings account 2 years ago. The simple interest rate is 2.7%. The interest that you earned in
gladu [14]

Answer:

ok if im right mark me branly pleaseeee

Suppose you deposited $100 in a savings account 4 years ago with a simple interest rate of 2.2%.

Principal P= $ 100

Time t = 4 years

rate of interest = 2.2 %

Formula of simple interest

Plugging the value in formula

simple interest =

simple interest =

simple interest = $ 8.8

so the stament is true

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
There are a total of 135 seats, 118 front handlebars and 269 wheels. How many bicycles, tandem bicycles, and tricycles in the wh
Degger [83]
118 handle bars tells us that there's 118 bikes

if all 118 bikes were regular bikes
118*2 = 236
we would be 33 wheels short

118*1 = 118
we would be 17 seats short

----

if 101 of the bikes are regular and 17 are tandem
101*1 = 101
17*2 = 34
we would have the right amount of seats

101*2 = 202
17*2 = 34
202 + 34 = 236
we would be 33 wheels short.

----

if 17 bikes are tandem, 33 are tricycle, and 68 are regular
17*2 = 34
33*3 = 99
68*2 = 136
we would have the right amount of wheels

---

Answer:
There are 68 bicycles, 17 tandem bicycles, and 33 tricycles.

This question isn't hard, it just takes longer since it's based off of guess and check.
7 0
3 years ago
30 points and Brainliest!!
diamong [38]
Thats easy .


the 2 figures aren't the same because they're both not the same size and one 
figure covers up more cubic units than the other. Also they both have different 
coordinates.
3 0
3 years ago
Whats the question? The answer is 32/3.
Ahat [919]
Maybe it could've been: 

3x = 32. Find the value of x.

Hence, you'd do 32 divided by 3 to find the value of x.
3 0
3 years ago
Read 2 more answers
If you answer this you will get brainless
Yanka [14]

Answer:

B

Step-by-step explanation:

A doesn't repeat at all
B just repeats on the 3
C repeats on the 1 and 3
D repeats on the 5, 1, and 3

6 0
2 years ago
Read 2 more answers
Other questions:
  • A company sells gadgets for $20/gadget and has a profit function from making and selling x gadgets of P(x) = 15x - 6000.
    7·1 answer
  • 2. A skydiver jumps from a plane from an altitude of 6000 ft. An observer on the ground measures the skydiver’s altitude at time
    8·1 answer
  • Consider this equation:
    15·2 answers
  • Rs800 for 3 year at rate of 5 percent p.a
    10·1 answer
  • In a certain​ college, 33% of the physics majors belong to ethnic minorities. If 10 students are selected at random from the phy
    9·1 answer
  • I need help with this ASAP, please thank you
    5·2 answers
  • Blair spent 45% of her birthday money on new clothes. What fraction of her money is that equivalent to?
    5·1 answer
  • The triangles on the grid below represent a translation.
    15·2 answers
  • Which inequality is true if p = 3.4? A. 3p < 10.2 B. 13.6 < 3.9p C. 5p > 17.1 D. 8.5 > 2.5p
    10·1 answer
  • Hi<br> Can u please help<br> i will pick the best one
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!