Download presentation

Presentation is loading. Please wait.

Published byTriston Bouch Modified over 3 years ago

1
**Do Now 1. If f(x) = │(x² – 50)│, what is the value of f(-5) ?**

A B C. 0 D E. -75 2. ( √2 - √3 )² = A √6 B. 5 - √6 C √6 D. 1 - √2 E. 1 = A B C D E. 226

2
**P.3 Lines in the Plane SWBAT 1. Find the slope of a line.**

2. Write linear equations given points on lines and their slopes. 3. Use slope-intercept forms of linear equations to graph lines. 4. Use slope to identify parallel and perpendicular lines.

3
The slope of a line Slope: rise over run, the change in y over the change in x

4
**The slope of a line Finding slope given 2 points:**

1. (-2, 0) and (3, 1) 2. (-1, 2) and (2, 2) 3. (3, 4) and (3, 1)

5
**The point-slope form of a line**

Point-slope form: y – y1 = m(x – x1) Find an equation of the line that passes through the point (1, -2) and has a slope of 3. Find an equation of the line that passes through (2, - 3) and (4, 5).

6
**Using point-slope to create linear models**

During 1997, Barnes and Noble’s net sales were $2.8 billion, and in 1998 net sales were $3.0 billion. 1. Write a linear equation giving the net sales y in terms of the year x. 2. Use the equation to estimate the net sales during

7
**Linear extrapolation: an approximation in which the estimated point lies outside of the given points**

Linear interpolation: the estimated point lies between the two given points

8
**Sketching graphs of lines**

Slope-intercept form: y = mx + b Better suited to graph linear equations

9
**Sketching graphs of lines**

Determine the slope and y-intercept of each linear equation and describe its graph. 1. x + y = 2 2. y = 2

10
**Parallel Lines Parallel lines: have slopes that are equal**

Find the slope-intercept form of the equation of the line that passes through the point (2, -1) and is parallel to the line 2x – 3y = 5.

11
Perpendicular Lines Perpendicular lines: have slopes that are negative reciprocals Find an equation of the line that passes through the point (2, -1) and is perpendicular to the line x – 3y = 5.

Similar presentations

OK

Notes Over 2.1 Graphing a Linear Equation Graph the equation.

Notes Over 2.1 Graphing a Linear Equation Graph the equation.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on history of pie in math Ppt on hindu religion beliefs Ppt on you can win Ppt on viruses and bacteria photos Slide show view ppt online Ppt on colors tv channel Ppt on ram and rom pictures Download ppt on auxiliaries to trade Maths ppt on statistics for class 10 Ppt on marine diesel engines