SOLUTION: can someone help me with this two question. Classify the function as a linear, quadratic, or exponential. 1. f(x) = -5x - 4 2. f(x) = (x - 5)(x + 4)

Algebra ->  Equations -> SOLUTION: can someone help me with this two question. Classify the function as a linear, quadratic, or exponential. 1. f(x) = -5x - 4 2. f(x) = (x - 5)(x + 4)      Log On


   

Question 164710This question is from textbook
: can someone help me with this two question.
Classify the function as a linear, quadratic, or exponential.
1. f(x) = -5x - 4
2. f(x) = (x - 5)(x + 4) This question is from textbook

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
1. linear because a graph of f(x) is a straight line and it is of the 1st degree.
2. quadratic because it is a polynomial equation of the 2nd degree. Its graph is a parabola.
f(x)=x^2-x-20
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Ed
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graph%28500%2C500%2C-10%2C10%2C-10%2C10%2C-5x-4%29
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graph%28500%2C500%2C-10%2C10%2C-20%2C20%2Cx%5E2-x-20%29