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14.12.2019 •
Mathematics
Aline passes through (9, –9) and (10, –5). a. write an equation for the line in point-slope form. b. rewrite the equation in standard form using integers
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Ответ:
slope = (-5 - (-9) / (10 - 9) = 4/1 = 4
y - y1 = m(x - x1)there can be 2 answers for this one...
using (9,-9)..
y - (-9) = 4(x - 9) =
y + 9 = 4(x - 9) <== this one
using (10,-5)
y - (-5) = 4(x - 10) =
y + 5 = 4(x - 10) <== this one
y + 5 = 4(x - 10)
y + 5 = 4x - 40
y = 4x - 40 - 5
y = 4x - 45
-4x + y = -45
4x - y = 45 <== standard form
Ответ:
2. School A
3. School B
Step-by-step explanation:
i don't know 1&4 sorry i couldn't help more ):