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2 years ago

12

Triangle JKL is shown on the grid below. Triangle J'K'L' is the image of triangle JKL under a 90 degree clockwise rotation about

the origin. What are the coordinates of vertices J', K', and L'′? (Hint: Use the chart, switch x and y and make switch sign of second coordinate)

1 answer:

zheka24 [161]2 years ago

3 0

Answer:

J (-4 , 1) -> J' (1 , 4)

K (-2 , 1) -> K' (1 , 2)

L (-2 , 5) -> L' (5 , 2)

Step-by-step explanation:

clockwise rotation 90°: (x,y) -> (y,-x)

J (-4 , 1) -> J' (1 , 4)

K (-2 , 1) -> K' (1 , 2)

L (-2 , 5) -> L' (5 , 2)

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Use the Multiplication Distributive Property; (xy)^a = x^ay^a

3^2(x + 1)^2 = 36

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9(x + 1)^2 = 36

Divide both sides by 9

(x + 1)^2 = 36/9

Simplify 36/9 to 4

(x + 1)^2 = 4

Take the square root of both sides

x + 1 = √4

Since 2 * 2 = 4, the square root of 2 is 2

x + 1 = 2

Break down the problem into these 2 equations

x + 1 = 2

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Solve the first equation; x + 1 = 2

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Solve the second equation; x + 1 = -2

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2 years ago

Simplifying rational expressions

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3 years ago

The height in feet above the water of a diver can be modeled by ℎ() = −16*2 − 16 + 192, where t is the time in seconds after the

Maurinko [17]

h(t) is the height of the diver in feet above the water

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3 years ago

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nalin [4]

Answer:

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We are going to see if the exponential curve is of the form:

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It is just the $y-$ coordinate of the $y-$ intercept is your value for $a$ .

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So $a=8$ .

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Let's try it. So the last point given that we need to satisfy is $(2,12.5)$ .

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3 years ago

Am I correct? If so why?

babunello [35]

Answer: its correct

Step-by-step explanation: and its correct cuase its the answer you choose

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