Question

Can someone explain how to write a function rule Please.

Answer 1

\[f(x) = x^2\] is a function rule for a parabola that opens upwards and has a double root at x = 0.

is this what you mean?

Answer 2

um, IDK my questions have to do with ordered pairs, rate, and area.

Answer 3

what info are you given?

Answer 4

well it will give me ordered pairs and it says that they represent a function then it tells me to write a rule that represents a the function.

Answer 5

okay, what are the ordered pair?

Answer 6

did you try plotting them to get an idea of the shape of the graph?

Answer 7

no I didn't

Answer 8

they look like a line

Answer 9

so use two of the points to get a slope and write the equation of the line in slope-intercept form.
if all of the points are on the line then the slope-intercept form is the function rule:
f(x) = mx+b

Answer 10

ok thanks!!!!!!!! :)

Answer 11

you're welcome!