Project 23: Draw Polynomials

Project 23: The following variables (xMin, xMax, yMin, yMax, co) have been initialized.  There are also  working methods called getYPoly and drawPoint available.

xMin is the lowest x-value on the graph (-5 for the example below)

xMax is the highest x-value on the graph (6 for the example below)

yMin is the lowest y-value on the graph (-5 for the example below)

yMax is the highest y-value on the graph (3 for the example below)

co is an array of values that represent the polynomial's coefficients in ascending order

example: the polynomial graphed below is y = x^3 -  4x^2 - 11x + 30

The array 'co' would hold values: {30, -11, -4, 1}.

getYPoly is a method that accepts an array of coefficients (representing the coefficients of a polynomial) and an x-value.  The method returns the y-value for the polynomial at the given x.

drawPoint(x,y) draws a point on the graph at (x,y)

example 1: co = {30, -11, -4, 1}.  getYPoly(co, 2.0) returns 0.0

example 2: co = {30, -11, -4, 1}.  getYPoly(co, 0.0) returns -2.0

Task: Implement (write code) to draw the polynomial 'co' on the graph.  Your graph will be presented in MAGENTA.

Universal Computational Math Methods:

pow(5,2) returns 25.0

abs(-3.0) returns 3

sqrt(49.0) returns 7.0