The function f below is linear, and the function g is quadratic. Find expressions for both functions:
x | f(x) | g(x)
0 | 19 | -9
3 | 15 | 15
6 | 11 | 3

Question

The function f below is linear, and the function g is quadratic. Find expressions for both functions:
x | f(x) | g(x)
0 | 19 | -9
3 | 15 | 15
6 | 11 | 3

anonymous · Answer

standard equations exists for every order
for a linear equation$$f(x) = ax+b$$
for a quadratic equation its$$f(x) = ax^{2}+bx+c$$
substitute the given values and find the coefficients

anonymous · Answer

So would I plug in each of the numbers into x?

anonymous · Answer

yes in linear equation u have two unknowns, so must have two equations to solve them,
so plug in the values of x and get coefficients

anonymous · Answer

tell me the linear equation if u solved it