We continued our examples of word problems by doing some common examples without equations.
Assignment: p. 256 #1-4, 9, 12, 13
The Ch. 5 Quadratic Functions Test is Thursday.
5.6 Applications of Quadratic Functions
We continued our examples of word problems by doing some common examples without equations. Assignment: p. 256 #1-4, 9, 12, 13 The Ch. 5 Quadratic Functions Test is Thursday. 5.6 Min/Max Problems
Today we did word problems in which a quadratic function is given which models a specific situation. Students found the minimum or maximum value, graphed the function, and answered other questions relating to the function. Assignment: p. 256 #1, 5 5.4/5.5 General to Standard Form
Students did a quiz on graphing a parabola given an equation in general form. We started a look at word problems but did not progress very far. 5.5 Using a formula to find the vertex
We started today's class with a quiz on 5.3 finding an equation of a parabola. We then developed the formula h=-b/2a. This was used to find the vertex of a quadratic function written in general form. Assignment: p. 247 #1, 2-5eol 5.4 General Form to Standard Form
Today we looked at the process of "completing the square". This was used to change a quadratic function into standard form. Students could then graph the function and determine various characteristics of the graph. Assignment: p. 239 #1-6 odds; 7; 11 5.2 Standard Form
Students wrote and marked a quiz on graphing a quadratic function. Using the graph students found identified the vertex, max/min, domain, range, and intercepts. 5.4 General to Standard Form We started a lesson on converting between general and standard form. We will continue this lesson tomorrow. No homework was assigned. 5.2 Standard Form of a Quadratic
Students spent the first 30 minutes practicing graphing parabolas. Assignment: 227 #1, 2-5odd, 6 5.3 Finding Equations We also looked at how to take a graph and write an equation for the graph. Assignment: p. 233 #1-3odd, 4, 6, 10 5.2 Standard Form of a Quadratic Function
Today we discussed types of transformations of a graph. We looked at how changing values in y=a(x-h)^2+k caused changes to the parabola. We used this knowledge to graph a parabola without using a table of values. Students will have time in class to complete the homework for this section. 5.1 Quadratic Functions
Today we finished our introduction of quadratic functions by drawing sketches and identifying important features of the graph (vertex, intercepts, max/min, domain, range, and the equation of the axis of symmetry). Assignment: p. 220 #1, (3-7)odds 5.1 Introduction to Quadratic Functions
Today we went over the definition of a quadratic function. We also introduced some vocabulary (vertex, axis of symmetry, minimum, maximum, domain, range, and direction of opening) that makes it easier to discuss the important features of a quadratic graph. Assignment: p. 220 #1, 3-7 odds We will have some more time to work on this assignment in class tomorrow. |
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May 2024
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