Answer:
d. Y+2=2(x-4)
Step-by-step explanation:
we have one point
(4, -2)
and 4 equations
a. Y-2=-2(x+3)
b. Y-2=2(x+4)
c. Y+2=-2(x-4)
d. Y+2=2(x-4)
we have to replace the x with 4 and the y with -2
and in the equation that equality is fulfilled is a correct option
a.
Y-2=-2(x+3)
(-2)-2=-2((4)+3)
-4=-2(7)
-4 = -14
Wrong
b.
Y-2=2(x+4)
-2-2=2((4)+4)
-4=2(8)
-4 = 16
Wrong
c.
Y+2=-2(x-4)
(-2)+2=-2((4)-4)
-4 = -2(0)
-4 = 0
Wrong
d.
Y+2=2(x-4)
(-2)+2 = 2((4)-4)
0 = 2(0)
0 = 0
Correct
Step-by-step explanation:
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Answer:
4 square feet
Step-by-step explanation:
We can see that the dimensions of the hole in the carpet are 2ft by 2ft. All we have to do is find the area of that shape. Since the two side lengths are the same, and the shape appears to have 4 right angles in each of its corners, we can deduce that the shape is a square. We know that the area of a square can be found by multiplying the length and width measurements of the shape:
2ft * 2ft
= 4 ft²
Answer:
4 ft downwards
Step-by-step explanation:
old height off the ground :
7^2+b^2=25^2
49+b^2=625
b^2=576
b=24
new height off the ground :
7+8=15
15^2+ b^2 =25^2
225+b^2 = 625
b^2 = 400
b=20
difference between heights :
24 - 20 = 4
