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vazorg [7]
3 years ago
10

Which is an equation of the line containing (1, –3) and (7, 15)?

Mathematics
1 answer:
ahrayia [7]3 years ago
3 0
Answer:

y = 3x - 6

Step-by-step explanation:

(1, -3) (7, 15)

Step 1. Find the slope

Slope = 3

Step 2. Create the equation of the slope then use a point and plug it in as terms of x and y with a y-intercept at the end

y = 3x + b

(15) = 3(7) + b

15 = 21 + b

15 - 21 = b

b = -6

Thus, the equation of the line is y = 3x - 6
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