Question

f(x)= -2x^2+5
graph the function by hand. find the domain and range of the function.

Answer 1

what do you need help with specifically?

Answer 2

i dont know how i would graph it

Answer 3

well f(x) = y
so x is your input and y is your output

Insert numbers the numbers
-100, -10, -5, -2, 0, 2, 5, 100 into your function as x values then what record what you get out to generate the y coordinate. you can then graph the points and use the -100 and +100 to know how the graph is chainging on bothsides.

First you should find domain, since this is a linear equation the domain is all real numbers, all x values can be inputed into it without breaking anyrules.

To find the range of the function look at what posslbe x values you can have for this function to do that notice that the equation is of a parabala. Find the vertex of it and that will tell you your range