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dusya [7]
2 years ago
12

The equation x= -7y^2 describes a parabola. Which way does the parabola open?

Mathematics
1 answer:
Nutka1998 [239]2 years ago
8 0

Answer:

Downwards

Step-by-step explanation:

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I NEED HELP PLEASE, THANKS! :)
lbvjy [14]

Answer:

Option D

Step-by-step explanation:

x is given to be 4 in this case, so all we would have to is plug it into the following function -

f ( x ) = \left \{ {{x - 2, x < 4 } \atop {x + 2, x \geq 4 }} \right

Through substitution, you would receive the following function -

f ( x ) = \left \{ {{2, 4 < 4 } \atop 6, 4 \geq 4 }} \right

Now the graph proves that this function is closer to 4, and thus proves that the y - coordinate is about 2 at the same time. However, the graph is cut off, so the limit doesn't exists.

3 0
3 years ago
Which expression is NOT equivalent to 6x + (5x + 10)?
kondor19780726 [428]
To find the answer test all the possible solutions
6x+(5x+10)
= 6x+5x+10
=11x+10

A) 11x+10

B) (6x+10)+5x
= 6x+10+5x
=11x+10

C) 5(x+10)+5x
= 5x+50+5x
= 10x+50, this is not equivalent. 

D) 6x+5(x+10)
= 6x+5x+50
= 11x+50, this is not equivalent either 
4 0
4 years ago
Why does Y equals 5X plus one have a bigger slope then y equals 2X +5
jolli1 [7]
Slope intercept form is y = mx + b, where m is the slope. 5 is greater than 2 so that’s why y = 5x + 1 has a greater slope than y = /x + 5
5 0
3 years ago
Find the missing values for the exponential function represented by the table below. x values: 0, 1, 2, 3, 4 y values: 24, 40.8,
lakkis [162]

f(x)=b(a)^x\\\\x=0\to y=24\qquad\text{substitute}\\\\b(a)^0=24\to b=24\\\\x=1\to y=40.8\qquad\text{substitute}\\\\24(a)^1=40.8\qquad\text{divide both sides by 24}\\\\a=1.7\\\\f(x)=24(1.7)^x\\\\\text{check for x = 2}\\\\f(2)=24(1.7)^2=24(2.89)=69.36\qquad\text{CORRECT}\\\\f(3)=24(1.7)^3=24(4.913)=117.912\\\\f(4)=24(1.7)^4=24(8.3521)=200.4504

3 0
3 years ago
Sarah bought 18 boxes of 65 pens at $12 a box. She sold 378 of them at 3 for $1.00 and the rest at 4 for $1.00. She sold 378 of
kodGreya [7K]

Answer:

$108

Step-by-step explanation:

The computation of the total profit is shown below:

Given that

1 box = $12

18 boxes = 12×18 = $216

So

Total = 18×65 = 1170 pens

Now Cost price, Cp = $216

Also,

3 = $1

So,

= 378 ÷ 3

= $126

Now

= 1170-378

= 792 pens remaining

4 = $1

So,

792

= 792 ÷ 4

= $198

Now

Total selling price, sp = 126+198 = $324

So finally

Profit = Sp - Cp

= $324 - $216

= $108

8 0
3 years ago
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