1. 5.1 Writing Linear equations in slope intercept form

2. Notes Slope intercept form: y = mx + b Y = 3x + 2 M = slope
B = y-intercept
Y = 3x + 2
What is the slope?
What is the y-intercept
Identify the slope and intercept
Y = 2x + 5
Y = 1/2x
Y = -4x + 1
Y = 3 + 2x
Y = x -5
2y = 4x - 3

3. Write equation of a line t/st
Slope of 1 and intercept of 0
Slope of -3 and intercept of -5
Slope of 0 and intercept of 9
Slope of -2 and intercept of 4
Slope of 6 and intercept of -1
Slope of -6 and intercept of -2
Slope of -3/4 and intercept of 2

4. Write equation from graph
Find slope
Find y-int
Write equation

5. Write equation from graph-st
Blue:
Red:
Green:

6. Word Problem
Doubling a child’s height on his or her second birthday gives a close estimate of his or her final adult height. Write a linear equation that gives the approximate adult height of a two-year old in terms of their current age.

7. Word Problem
In mammals, the weight of the heart is approximately .005 of the total body weight. Write a linear equation that gives the heart weight in terms of the total body weight.

8. Wrap up Questions/Comments
Hw: Text pg. 276, #’s: 4-24 evens, 26, 27, 30