Use the five-step strategy to graph f(x) = x3 - 3x2.

Q: Graph f(x) = 3x3 – 5x2 – 27x + 45 in paper-pencil-ruler style.

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Q: Graph: f(x) = 3x.

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Q: Graph: f(x) = x4/(x2 + 2).

A:

Q: f(x)=-sqrtx+2-6 Graph function and state domain and range.

A:

Q: Find the domain of f(x) = 28 - 2x.

A: fx=28-2x

Q: g(x) = x2 + 2x + 7   Identify the vertex

A:

Q: Graph: f(x) = x4/(x2 + 1).

A: Given: fx=x4x2+1 graph of given function by using graphing utility can be draw as below

Q: Find f(-7) if (x)=2x+8

A: Given  f(x)= 2x+8  we use substitution method to find value of f(x) at x= -7

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.