Identify each function as linear, quadratic, or exponential. f(x) = 4x2, g(x) = 1 - x, and h(x) = 32x
Solution:
Given: Functions f(x) = 4x2, g(x) = 1 - x, and h(x) = 32x
Clearly, f(x) is similar to quadratic expression : ax2 + bx + c, where b, c are equal to 0
Hence, f(x) is quadratic function with the higher degree of 2.
Let us consider g(x) = 1 - x, g(x) is varying with x as it has power 1
Hence, g(x) is linear.
Clearly, h(x) is similar to linear slope equation y = mx where m = 32
Hence, h(x) is also linear.
Let us give some values for x,y and cross check
x | -1 | 0 | 1 | 2 | 3 |
---|---|---|---|---|---|
f(x) | 4 | 0 | 4 | 16 | 36 |
g(x) | 2 | 1 | 0 | -1 | -2 |
h(x) | -32 | 0 | 32 | 64 | 96 |
Therefore, the functions f(x) = 4x2, g(x) = 1 - x, and h(x) = 32x are quadratic, linear and linear respectively.
Identify each function as linear, quadratic, or exponential. f(x) = 4x2, g(x) = 1 - x, and h(x) = 32x
Summary:
The functions f(x) = 4x2, g(x) = 1 - x, and h(x) = 32x are quadratic, linear and linear respectively.
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