1. ALGEBRA II HONORS/GIFTED @
ALGEBRA II HONORS/GIFTED - SECTION 2-3 (Linear Functions and Slope-Intercept Form)
7/16/2018
ALGEBRA II HONORS/GIFTED @
SECTION 2-3 : LINEAR FUNCTIONS and SLOPE-INTERCEPT FORM

2. 1) What is the slope of the line at the right?
Answer : 5/4
2) So, what is slope?

3. 3) What is the slope of the line that passes through the given points?
a) (8, 14) and (3, 12)
Answer : 2/5
b) (-10, 2) and (4, -5)
Answer : -1/2
c) (6, -1) and (5, -1)
Answer : 0
d) (-2, 5) and (-2, -3)
Answer : undefined

4. TYPES OF SLOPE
positive negative zero undefined

5. Linear Function : a function whose graph is a line.
Linear Equations :
Slope-Intercept Form y = mx + b
Standard Form Ax + By = C
no fractions, A > 0
Point-Slope Form y - y1 = m(x - x1)

6. Write an equation for each line in Slope-Intercept Form.
4) slope = -3, y-intercept is (0, 5)
Answer : y = -3x + 5
5) 2x + 3y – 15 = 0
Answer : y = (-2/3)x + 5 6)
Answer : y = (2/3)x - 1

7. Graph each equation. 7)

8. 8) 3x + 2y = -6

9. 9) x = -2

10. 10) y = 4