(-2, 1/2), (1, -2/3) Find the equation of the line
1 answer:
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Answer:
7x +18y = -5
Step-by-step explanation:
The slope is ...
m = (y2 -y1)/(x2 -x1)
m = (-2/3 -1/2)/(1 -(-2)) = (-7/6)/(3) = -7/18
The y-intercept is ...
b = y -mx
b = 1/2 -(-7/18)(-2) = 1/2 -7/9 = -5/18
Then the slope-intercept form of the equation is ...
y = -7/18x -5/18
Multiplying by 18 and adding the opposite of the x-term gives the equation in standard form. The standard form equation is ...
7x +18y = -5
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The correct answer is two designs are used 12 times each and other four designs are used for 13 times each.
Step-by-step explanation:
Width of the quilt Lu is making is 18 rows of 20 squares each.
Thus the perimeter of the quilt is 20 + 20 + 18 + 18 = 76.
We can also say there are 76 square as the boundary which are to be bordered with toy designs.
Each square can hold 1 design of toy and there are 6 different designs of toys.
Thus number of times each design is used = 12
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Thus there are two designs used 12 times each and other four designs are used for 13 times each.