Line g has a slope of 7/9. Line h is perpendicular to g. What is the slope of line h ?
1 answer:
Answer:
The slope of line h is -9/7
Step-by-step explanation:
mathematically, for two lines that are perpendicular to each other, the product of their slopes is equal to -1
say we have two lines l1 and l2, the product of their slopes m1 and m2 is -1
Mathematically;
m1 * m2 = -1
now, m1 here is 7/9 , we now proceed to calculate m2
7/9 * m2 = -1
7m2/9 = -1
7m2 = -9
m2 = -9/7
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-x^2 - 2x + 4 - 1 = 0
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(x + 3)(-x + 1)= 0
x + 3 = 0 -x + 1 = 0
x = -3 -x = -1
x = 1
so x = -3 and x = 1
Yes, set up your proportion: x/21 = 10/14
Cross multiply 14x = 210
Divide both sides by 14 and x= 15 cm
Answer:
1
Step-by-step explanation:
-4 minus -8 is the same as 8 - 4 which is 4 and 4 divided by 4 is 1.
8x=24 which is 3 so x = 3
4y=24 which is 6 so y = 6
(3,0) for x and (0,6) for y
