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rolo7105
12.07.2019 •
Mathematics
Aline is drawn through (–7, 11) and (8, –9). the equation y – 11 = (x + 7) is written to represent the line. which equations also represent the line?
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Ответ:
3y+4x=5
Step-by-step explanation:
step 1
Find the slope
we have
(–7, 11) and (8, –9)
m=(-9-11)/(8+7)
m=-20/15
m=-4/3
step 2
Find the equation of the line into point slope form
we have
m=-4/3
point (-7,11)
substitute
y-11=-(4/3)(x+7) > equation of the line into point slope form
Multiply by 3 both sides
3y-33=-4(x+7)
3y-33=-4x-28
3y+4x=33-28
3y+4x=5 > equation of the line into standard form
Ответ:
Find 64% of 1,500
Should get 960
The best estimate for the # of students coming is 960 students.