Download presentation

Presentation is loading. Please wait.

Published byKaylee Woulfe Modified over 4 years ago

1
Do Now 10/23/09 Take out HW from last night. Text p. 209, #4-32 evens, #36 & #38 Copy HW in your planner. Text p. 219, #6 & 8, 16-32 even, 38 In your notebook, explain how you know a function is a function. Then answer if the following three tables are functions or not. x 02448 y43210 x11235 y43210 x12345 y336810 Each input must be paired with only ONE output Not a function Function

2
Homework Text p. 209, #4-32 even & 36, 38 4) (0, -1) 6) (-4, 3) 8) (3,0) 10) (-3,-2) 12) (-1,2) 14) Quadrant I 16) x-axis 18) Quadrant III 20) Quadrant I 22) The description of the location is backwards, the point is 6 units to the right of the origin and 6 units down. 24) Range: -1, 0, 1, 2, 3 graph on board 26) Range: -5, -3, -1, 1, 3 graph on board 28) rectangle; area=48 sq. units; perimeter=28 units 30) Quadrant IV 32) Quadrant III 36) a. Asia; b. North America; c. Asia; d. South America; e. North America; f. Europe 38) a. There is exactly one change in value for each day; b. The change in value increases until day 4, and then decreases.

3
Objective SWBAT graph 7 linear equations and linear functions in a coordinate plane

4
Section 4.2 “Graph Linear Equations” Linear Equation- an equation whose graph is a line The STANDARD or GENERAL FORM of a linear equation is represented as Ax + By = C where A, B, and C are real numbers

5
Linear Equations An example of a linear equation in two variables is -3x + 2y = 5 the solution of an equation in two variables, x and y, is an ordered pair (x, y) that produces a true statement when substituted into the equation. Which ordered pair is a solution of -3x + 2y = 5? A. (3,4) B. (1,-1) C. (-1, 1) D. (0,-1)

6
2 4 6 8 10 024681012 y-axis x-axis (-2,-10) -12-10-8-6-4-2 -10 -8 -6 -4 -2 Graph an Equation Graph the equation y = -4 + 3x. xy -2-10-7 (-1,-7) 0-4 (0,-4) 1 (1,-1) 22 (2,2)(2,2)(2,2)(2,2) y = -4 + 3x

7
Graph an Equation Solve the equation for y. STEP 1 SOLUTION Graph the equation y + 2x = 4. STEP 2 Make a table by choosing a few values for x and then finding values for y. STEP 3 Plot the points. Notice the points appear on a line. Connect the points drawing a line through them. x-2012 y86420

8
Graph an Equation Solve the equation for y. STEP 1 SOLUTION Graph the equation -2x + y = -3. STEP 2 Make a table by choosing a few values for x and then finding values for y. STEP 3 Plot the points. Notice the points appear on a line. Connect the points drawing a line through them. x-2012 y-7-5-31

9
Graph an Equation Solve the equation for y. STEP 1 SOLUTION Graph the equation 0x + 1y = 2. STEP 2 Make a table by choosing a few values for x and then finding values for y. STEP 3 Plot the points. Notice the points appear on a line. Connect the points drawing a line through them. x-2012 y22222

10
Graph an Equation Solve the equation for x. STEP 1 SOLUTION Graph the equation x = -1. STEP 2 Make a table by choosing a few values for x and then finding values for y. STEP 3 Plot the points. Notice the points appear on a line. Connect the points drawing a line through them. x y-2012

11
Linear Function- The equation Ax + By = C represents a linear function as long as B = 0.

12
Graph a Function SOLUTION12 Graph the function y = – x + 4 with domain x ≥ 0. Then identify the range of the function. STEP 1 Make a table. x 02468 y43210 STEP 2 STEP 3 Connect the points with a ray because the domain is restricted. Plot the points. STEP 4 Identify the range. From the graph, you can see that all points have a y - coordinate of 4 or less, so the range of the function is y ≤ 4.

13
Graph a Function SOLUTION STEP 1 Make a table. STEP 2 STEP 3 Connect the points with a ray because the domain is restricted. Plot the points. STEP 4 Identify the range. From the graph, you can see that all points have a y-coordinate of 1 or more, so the range of the function is y ≥ 1. Graph the function y = – 3x + 1 with domain x ≤ 0. Then identify the range of the function. x 0– 1– 2– 3– 4 y1471013

14
Homework Text p. 209, #4-32 even & 36, 38

Similar presentations

OK

Do Now 3/3/10 Take out HW from last night. Text p. 578, #4-48 multiples of 4 Copy HW in your planner. Text p. 586, #4-52 multiples of 4 In your notebook,

Do Now 3/3/10 Take out HW from last night. Text p. 578, #4-48 multiples of 4 Copy HW in your planner. Text p. 586, #4-52 multiples of 4 In your notebook,

© 2018 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google