I need help with 1-2 and 4-6!!!

Mathematics

1 answer:

serious [3.7K]3 years ago

4 0

Answer:

1. y = 1/4 and y = 1/4x+2

2. y - 1 = -x (x + 7) and y = -x and x + y = 3

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4. y = 3 and x = 6

5. y = 1/2x + 2 and y + 1 = -2x

6. Slope of <u>AB</u> = 2/3

Slope of BC = -3/2

AB is perpendicular to BC because 2/3(-2/3) = -1

ABC is a right triangle because it contains a right angle

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K(1,0), L(4,1), M(1,4), N(-2, 3) 90% counterclockwise rotation

docker41 [41]

Answer:

K (0,1)

L (-1,4)

M (-4,1)

N (-3,-2)

Step-by-step explanation:

When you rotate a figure 90 degrees counterclockwise about the origin, the points all change from (x,y) to (-y,x). Therefore the points would go from: (answers on right side)

K (1,0) ---> K (0,1)

L (4,1) ---> L (-1,4)

M (1,4) ---> M (-4,1)

N (-2,3) ---> N (-3,-2)

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3 years ago

a group of astronauts launched a model rocket from a platform. Its flight path is modeled by h= -4t^2+24t+13 where h is the heig

Eddi Din [679]

Answer:

6.5 seconds

Step-by-step explanation:

Keep in mind that when $h=0$ , this is the same height for both when the model rocket takes off and lands, so when the rocket lands, time is positive. Thus:

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So, the amount of seconds that the model rocket stayed above the ground since it left the platform is 6.5 seconds

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2 years ago

Read 2 more answers

Write the slope intercept form through: (5,1) and(2, -2)

victus00 [196]

We see that the slope of this line is $\frac{-2-1}{2-5}=1,$ so we plug this and the point $(5,1)$ into the point-slope form $y-y_1=m(x-x_1)$ (note that there's nothing special about the point I picked; you can choose any point on the line):