Question

What is f(-3) for the function f(a). =-2ax2-5a+4

Answer 1

The value of function f(x). =-2ax² -5a + 4 at a = -3 will be -23a + 2.

What is a function?

The machine will only accept specified inputs, described as the function's domain, and will potentially produce one output for each input.

For example y = sinx ,  y = x + 3 ets.

Given,

f(x)  = - 2ax² -5a + 4

x = -3

f(-3) =  - 2a(-3)² -5a + 4

f(-3) = -18a - 5a + 4

f(-3) = 23a + 2

Hence the value of function f(x). =-2ax² -5a + 4 at a = -3 will be -23a + 2.

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Answer 2

Answer:

I'll assume f(a). =-2ax2-5a+4 is supposed to read f(a) = -2a^2-5a+4.  There is no definition of "x" in this problem.

If so, f(-3) = 1

Step-by-step explanation:

f(a) =-2ax^2-5a+4

f(-3) =-2(-3)^2-5(-3)+4

f(-3) =-2(9) + 15+4

f(-3) =-18 + 19

f(-3) =  1