Line a: (–1, 2), (1, 8)

Line b: (–3, –4), (2, 11)

ma = 8 − 2
1 − (− 1)
= 6
2
= 3

mb = 11 − (−4)
2 − (− 3)
= 15
5
= 3

Slope of the line through (1, 8) and (2, 11)

m = 11 − 8
2 − 1
= 3
1
= 3

How many points of intersection are there between line a and line b?
zero
one
two
infinitely many

For the inequality |c| < |d| to be true, which of the following must be true?

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality

Find the axis of symmerty for x y=x squared -4x-8