SOLUTION: i need to graph {{{f(x)=-3x^2+x-5}}} Can I use f(x)=mx+b? The {{{x^2}}} is throwing me off, can you help?

Question 140722: i need to graph Can I use f(x)=mx+b? The is throwing me off, can you help?
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
Thank you for this answer. Can you explain how to get data points to graph from
this equation? I promise I am not being intentionally dense.
To get any points to graph all you have to do is set x to any value & saolve for y [f(x)]
example:
let x=1
-3*1^2+1-5
-3*1+1-5
-3+1-5=-7 the y value when x=1 or (1,-7)
let x=-2
-3*-2^2-2-5
-3*4-2-5
-12-2-5=-19 the y value for x-=2 (-2,-19)
hope this helps
---------------------------------------------------
f(x)=-3x^2+x-5
(graph 300x200 pixels, x from -6 to 5, y from -25 to 10, -3x^2 +x -5).
RELATED QUESTIONS
If possible there are several questions that are puzzling me and if possible I would like (answered by lwsshak3)

i need to find the domain, intercepts and any asymptotes of f(x)=(x^2+3X-4)/(x+1) but... (answered by RAY100)

Can you help me solve this, I need to graph it? f(x)... (answered by Earlsdon)

f(x)=2/3-5 i have several problems like this and do not know where to begin. I can do it (answered by Alan3354)

Can someone please help me on the following problem? I need to evaluate this... (answered by rcmcc)

I need help please explain how to use the graph of f(x) = b^x to produce the graph of... (answered by josgarithmetic)

I am trying to find the vertex for : f(x)=-x^2+10x+5. I am stuck... (-x^2+10x+25-25)+5... (answered by nerdybill)

Can anhone help me with this one? I can only graph something in the y=mx+b formula, but I (answered by jake_6233)

Could someone help me graph the following problem? Can you show me the graph because I... (answered by funmath)