7th grade plans to raise double the 5th grade, 6th grade plans to raise 3/2 of 5th grade.
6th grade plans to raise 2/3 of 8th grade.
Answer:
Step-by-step explanation:
Add -6x to both sides
6x + 7y + − 6x = 14 + − 6x
7y = − 6x + 14
Divide both sides by 7
7y / 7 = − 6x + 14 / 7
y = − 6 / 7x + 2
Answer
y = −6 / 7x + 2
<u>Graph question: answer would be :</u>
Place a point on (0,2) and a point on (5, -1)
Since and , we can rewrite the right side of the equation as
Using the identity , we can subtract from either side to obtain the identity
substituting that into our previous expression, the right side of our equation simply becomes
We can now write our whole equation as
Adding 2 to both sides:
dividing both sides by 3:
When 0 ≤ x ≤ π, tan x can only be equal to 1 when sin x = cos x, which happens at x = π/4, and it can only be equal to -1 when -sin x = cos x, which happens at x = 3π/4
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