math 2: linear functions

Question 1

slope-intercept form:

Answer 1

L(x) = mx + b

Question 2

slope formula

Answer 2

(y2-y1)/ (x2-x1)

Question 3

general equation of a line (not slope intercept form):

Answer 3

Ax + By = C→ y = (-A/B)x + (C/B)

Question 4

slope in the general equation:

Answer 4

m = (-A/B)

Question 5

y int in the general equation

Answer 5

b= (C/B)

Question 6

if B = 0 and A ≠ 0, general equation is

Answer 6

x = C/A (vertical line)

Question 7

parallel lines have

Answer 7

equal slopes

Question 8

product of the slopes of perpendicular lines is …, the slopes of perpendicular lines are opposite

Answer 8

-1; reciprocals