University:
High School
Course:
High School Mathematics
Academic year:

2020
Views:

67

Pages:

3
Author:

Arely A

1.3 Modeling with Linear Functions Writing an quation of a Line [two ways] slope - intercept form _point -. slope form '-. y == mx+b y-y1 '-�,......,,-....._�.,.- _,,,,, ·- --------- == wr, -�e. y- / - 7 m(x -x1) -2 (,x - l(; -2 �-r'·r ) . ' ......i6-, .: •' - ' '? Extra Practice In Exercises 1-3, use the graph to write an equation of the line and interpret the slope. 1. 2. Cell Phone Costs y I!! 52 !1! :g 8 .,. - �,,,. y '> OO 10 20 -.-, 'iii' 320 \. r,. � ,5. 240 .X C -- ,-. ,_ � 160 Number of text messages sent !le \ I\. 80 O O �,.)_ 3. ,-- , (0, 360)- ..... so ·� (10 51 (0 50} -48 Travel Distance 2 4 \ (6, 0 6 8 X Time (hours) ,:, ) Math Homework Grade -8f y \ 1 120 1--+---+-�--d--+-I Cl;:" � � 80' �7..:-�--{=· -t---1-1 0 u 1----1-'---.--'-' ..........+-1--+-I ;: 4i c. 40 E -G> -t-1---l-l--! 10 20 0 30x Completed assignments c y =-- I )(. +- 75.• . ' ·i. �) ( ;- !�--"'� ' ... j J C)I,\," -\-1' : I