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FinnZ [79.3K]
3 years ago
9

the points (18,21) and (36,42) form a proportional relationship. find the slope of the line through points. Then use the slope t

o graph the line.​
Mathematics
1 answer:
Contact [7]3 years ago
4 0

Answer:

-20/-8

Step-by-step explanation:

y1 - y2

_____  (over)

x1- x2

21-41

____

18-26

-20/-8 is the slope

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A volcano on a recently discovered planet rises to a height of 16.871 mi.
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5 0
2 years ago
Write a slope intercept equation for a line passing through the point (4,-2) that is parallel to the line 4x+5y=7. Then write a
LuckyWell [14K]

First, the equation needs to be put into slope-intercept form, which is y = -4/5x + 7/5. Then, you need to know what parallel and perpendicular lines are. REMEBER, parallel lines have the same slope, and perpendicular lines have slopes whose product equal -1. You just need to substitute. For the parallel line, -2 = -4/5(4) + b, and b = 6/5, so y = -4/5x + 6/5. For the perpendicular line, the slope is 5/4. Now substitute. -2 = 5/4(4) + b, and b = -7, so y = 5/4x -7.

3 0
3 years ago
How many solutions will there be to the following equation?16x^2=100
djverab [1.8K]

Answer:

2 solutions; x=2.5     x=-25

Step-by-step explanation:

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x^2 = 100/16

x^2 = 6.25

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4 0
3 years ago
Scott collects hats. He has 65 hats an plans on buying 80 per year.
kicyunya [14]

Answer:

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Step-by-step explanation:

x being the number of years so in ten years he will have 80x10=800+65=865

80x5=400+65=465 so 5 is the number of years it would take

and i do not understand number 1 but i put a formula just in case that was it

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3 years ago
Gebra
Studentka2010 [4]

Answer: The answer is 1, 2

Step-by-step explanation:

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