Answer:
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Step-by-step explanation:
Given
Required
Determine 
We know that:
This gives:
Collect like terms
Take square roots
By tan identity
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Answer:
you can cross multiply or u can 7/20 to get the answer that 7 is 35% of 20
The percentage decrease is 60% decrease because it changed by 81 and 81 is 60% of 135
Answer: answer is A
Step-by-step explanation:
Answer:
The first image.
x | y
-4 | 0
0 | 20 <--- When x = 0, the y value is the y-intercept.
4 | 40
8 | 60
Step-by-step explanation:
To check the slope, we can use the equation (y₂ - y₁) ÷ (x₂ - x₁) using any two pairs given. For this example, I'll use (-4, 0) and (4, 40).
x₂ y₂ x₁ y₁
(0 - 40) ÷ (-4 - 4)
(-40) ÷ (-8)
<u>Slope = 5</u>
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~Hope this helps!~
