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they're all quadratic, correct?
The steps are supposed to be described in words, i believe.
so what do you know about quadratic functions?
dot dot dot
@hwyl so what do i write down?
read the contents of that website
depends on what kind of resolution or general shape you need
they are all quadratic, you can put them in y = ax^2 + bx + c form
most important values to graph, Vertex x-intercept if any y-intercepts if any
@DanJS , @hwyl i don't think i can say the same answer for all of them though
start with one of them, and explain and show how to get a basic graph
f(x) = -x^2 + 34 vertex--- x = -b/(2*a) = -0/-2 = 0 y=f(0) = 34 Vertex is at (x,y) = (0,34)
okay so like for example with part a) Find the vertex, create a table of values, and graph them?
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)
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
yeah, i would find the vertex first, then find the x and y axis intercepts if they exist
you can use numbers to, just explain what you are doing, and show the graph of each point you find
You can list the values in a table if you want, but not really needed
You can draw all that from just finding the vertex (0,34)
and knowing that the negative on the x^2 term means it opens down
then find the values where the function crosses the x axis +a and -a points (+a , 0) and (-a , 0) Those are the x intercepts found by solving y = f(x) = 0 = -x^2 + 34
that is all i would do, done
That's how the question is set up on my paper. ^^^ The question in its function notation with two lines underneath
every question is set up like that so there's no room to graph or anything like that
ok, just explaine however you need to how you would make a graph of that function
if it is blank paper, i would assume you can draw and show equations as long as you back it up with a worded explination
" the function is this, ----, this is how you find the vertex point, ----, this is how you determine the direction of the parabola, this is how you find the axis intercepts if they exist for the function "
@DanJS ahhh okay that makes more sense now. Thank you!
if you want more detail you can pick any x value and solve for the corresponding y value, and add as many random points you want and build a table
welcome, i think they just want the important points, so you can get a basic graph