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What is the x-intercept of the line containing the points (–6, 10) and (12, –2)? a.4 b.5 c.6 d.9

What is the x-intercept of the line containing the points (–6, 10) and (12, –2)? a.4 b.5 c.6 d.9
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What is the x-intercept of the line containing the points (–6, 10) and (12, –2)?

a.4
b.5
c.6
d.9

User Michael Jarvis
by
8.3k points

2 Answers

0 votes
The X intercept is 11. I even drew it but it's not there...
User Willow
by
7.6k points
5 votes
slope = (-2 - 10)/(12 + 6) = -12/18 = -2/3

y = mx + b
10 = -2/3(-6) + b
10 = 4 + b
b =6

equation
y = -2/3x + 6

x-intercept when y = 0
-2/3x + 6 = 0
-2/3x = -6
x = 6 (3/2)
x = 9

answer is d.9
User James Brock
by
8.7k points
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