What effects do reciprocal transformations have on the graphs? The?x-coordinates stay the same The?y-coordinates change Their values become their?reciprocals If?y?= 0 then a vertical asymptote goes...
How do I find the modulus of a function? How do I solve modulus equations graphically? To solve |f(x)| =?g(x) graphically Draw?y?= |f(x)| and?y?=?g(x) into your GDC Find the?x-coordinates of the?po...
How do I sketch the graph of the modulus of a function:?y?= |f(x)|? STEP 1: Keep the parts of the graph of?y?=?f(x) that are?on or?above the?x-axis STEP 2: Any parts of the?graph below the x-axis?g...
What is the modulus function? At the vertex The function is?continuous The function is?not differentiable 轉載自savemyexams
How do I solve polynomial inequalities? STEP 1:?Rearrange?the inequality?so that?one of the sides is equal to zero For example:?P(x) ≤ 0 STEP 2: Find the?roots?of the polynomial You can do this by ...
How can I solve inequalities graphically? Consider the inequality?f(x) ≤?g(x), where?f(x) and?g(x) are functions of?x if we?move?g(x) to the LHS?we get f(x) –?g(x) ≤ 0 Solve?f(x) –?g(x) = 0 to?find...
How do I find the sum & product of roots of polynomials? an??is the coefficient of the?leading term an-1??is the coefficient of the?xn-1?term Be careful: this could be equal to zero a0?is the?c...
In exams you’ll commonly be asked to sketch the graphs of different polynomial functions with and without the use of your GDC. What’s the relationship between a polynomial’s degree and its zeros? I...
What is polynomial division? Polynomial division is the process of?dividing two polynomials This is usually only useful when the?degree of the denominator?is?less than or equal?to the?degree of the...
