Question

Describe the steps needed to graph each of the following functions:
a) f(x)=-x^2 + 34
b) f(x) =-5.5(x-6)^2+11
c) f(x)=1/10x^2+16
d) f(x) = -(x+18)^2+3

Answer 1

they're all quadratic, correct?

Answer 2

The steps are supposed to be described in words, i believe.

Answer 3

so what do you know about quadratic functions?

Answer 4

dot dot dot

Answer 5

http://jwilson.coe.uga.edu/emt668/EMAT6680.Folders/Barron/unit/Lesson%206/6.html

Answer 6

@hwyl so what do i write down?

Answer 7

read the contents of that website

Answer 8

depends on what kind of resolution or general shape you need

Answer 9

they are all quadratic, you can put them in y = ax^2 + bx + c form

Answer 10

most important values to graph,

Vertex
x-intercept if any
y-intercepts if any

Answer 11

@DanJS , @hwyl i don't think i can say the same answer for all of them though

Answer 12

start with one of them, and explain and show how to get a basic graph

Answer 13

f(x) = -x^2 + 34

vertex--- x = -b/(2*a) = -0/-2 = 0
y=f(0) = 34

Vertex is at (x,y) = (0,34)

Answer 14

okay so like for example with part a)
Find the vertex, create a table of values, and graph them?

Answer 15

the sin on the coefficient of the squarred term is negative, and tells you the parabola opens down...there will be x-intercepts

x-intercepts are where y=0,, solve

y = 0 = -x^2 + 34

plot the points (x,0)

Answer 16

It's just that i feel like the same steps are followed for the every question. So, i don't understand how you're supposed to find the steps for each one to differentiate in words

Answer 17

yeah, i would find the vertex first, then find the x and y axis intercepts if they exist

Answer 18

you can use numbers to, just explain what you are doing, and show the graph of each point you find

Answer 19

You can list the values in a table if you want, but not really needed