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Es. 1 Complete the table of values for this linear lunction. y-3x+1 First Differences -2 y%=D What is true about the 1" differences? -1 %3D y%3D Thus, for linear functions, the 1" differences are %3D y%3D 1. 2.

Es. 1 Complete the table of values for this linear lunction. y-3x+1 First Differences -2 y%=D What is true about the 1" differences? -1 %3D y%3D Thus, for linear functions, the 1" differences are %3D y%3D 1. 2.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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MCFIMI-Unit 2 Quedrat Functions forms ant Transformations-Lesson 1 Analysing Quadratic Functions A Recal inen ato -m b) produce atraight lines Quodretic enuations i Both linear and ouadratic equations represent relations that are also functions bac where a AceR and a0) produce porsboles B. First and Second Differences-A Review Es. 1 Complete the table of values for this linear lunction. y-3X+1 First Differences y%3= What is true about the 1" differences? -1 y3D y%3D Thus, for linear functions, the 1" differences are 1. y%3D 2. %3D Ex. 2: Complete the table of values for this quadratic function. y-3x-2x+1 First Differences Second Differences -2 y%3D -1 y= y= y%3D What is true about the 2" differences? Thus, for quadratic functions, the 2 differences are
Transcribed Image Text:MCFIMI-Unit 2 Quedrat Functions forms ant Transformations-Lesson 1 Analysing Quadratic Functions A Recal inen ato -m b) produce atraight lines Quodretic enuations i Both linear and ouadratic equations represent relations that are also functions bac where a AceR and a0) produce porsboles B. First and Second Differences-A Review Es. 1 Complete the table of values for this linear lunction. y-3X+1 First Differences y%3= What is true about the 1" differences? -1 y3D y%3D Thus, for linear functions, the 1" differences are 1. y%3D 2. %3D Ex. 2: Complete the table of values for this quadratic function. y-3x-2x+1 First Differences Second Differences -2 y%3D -1 y= y= y%3D What is true about the 2" differences? Thus, for quadratic functions, the 2 differences are
So far, we know how to distinguish between linear and quadrotic functions by examining ther differences What about just looking at their equations? The word degree is used to describe ihe yrof equation you have The degree of a polynomial with a single variable is the value of the higheit ent in the equation Here are some examples Constant Function Type Sketch Equation Degree Differences y=3x+1 linear y=3x-2x+1 quadratic y=-5x+4 y=-3r'+1 y= x-2x +1 "boma y=x-5x-31 mus! C. Terminology for Working with Quadratics The direction of opening for the quadratic equation can be determined by inspecting the a value: o ifa>0 (+) the parabola opens up if a <0 (-) the parabola opens down. The vertex of a parabola is the maximum or minimum point that the parabola reaches. If the parabola opens down, the vertex is a maximum; if it opens up, the vertex is a minimum. o If a graph or table of values has been created, the vertex can be found by inspection. If the equation is given in vertex form... y = a(x- hy + k, the vertex is always at the point (h, k). If the equation is given in standard form.. y = ax + bx + C, the x-value of the vertex is h = 2a The axis of symmetry is the vertical mirror-line that divides the parabola in half through its vertex. The equation of the axis of symmetry is the x-value of the vertex (i.e. x = h) Ex. 3: Graph the table of values provided: Time Height (m) (s) calculate the 1“ and 2nd differences what type of function is it? 35 state the direction of opening 2 60 state the vertex 75 is the vertex a maximum or a minimum? 4 80 give the equation of the axis of symmetry 5 75 6. 60 find the range of this function 7. 35 8. 3.
Transcribed Image Text:So far, we know how to distinguish between linear and quadrotic functions by examining ther differences What about just looking at their equations? The word degree is used to describe ihe yrof equation you have The degree of a polynomial with a single variable is the value of the higheit ent in the equation Here are some examples Constant Function Type Sketch Equation Degree Differences y=3x+1 linear y=3x-2x+1 quadratic y=-5x+4 y=-3r'+1 y= x-2x +1 "boma y=x-5x-31 mus! C. Terminology for Working with Quadratics The direction of opening for the quadratic equation can be determined by inspecting the a value: o ifa>0 (+) the parabola opens up if a <0 (-) the parabola opens down. The vertex of a parabola is the maximum or minimum point that the parabola reaches. If the parabola opens down, the vertex is a maximum; if it opens up, the vertex is a minimum. o If a graph or table of values has been created, the vertex can be found by inspection. If the equation is given in vertex form... y = a(x- hy + k, the vertex is always at the point (h, k). If the equation is given in standard form.. y = ax + bx + C, the x-value of the vertex is h = 2a The axis of symmetry is the vertical mirror-line that divides the parabola in half through its vertex. The equation of the axis of symmetry is the x-value of the vertex (i.e. x = h) Ex. 3: Graph the table of values provided: Time Height (m) (s) calculate the 1“ and 2nd differences what type of function is it? 35 state the direction of opening 2 60 state the vertex 75 is the vertex a maximum or a minimum? 4 80 give the equation of the axis of symmetry 5 75 6. 60 find the range of this function 7. 35 8. 3.
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