2 years ago

“reflection across y= -1” HELP

Mathematics

1 answer:

Mila [183]2 years ago

3 0

Answer:

the orange line is the reflection y=-1

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Felicia is solving the expression -5(3x+2)+10x. Gregory is solving the expression -12-4x+?+?x. Both students simplified their an

densk [106]

Answer:

see the explanation

Step-by-step explanation:

we have

<em>Felicia</em>

$-5(3x+2)+10x$

Apply distributive property

$-5(3x)-5(2)+10x$

$-15x-10+10x$

Combine like terms

$-5x-10$

Let

a ----> the missing term with coefficient x in Gregory's expression

b ----> the missing constant term in Gregory's expression

$-12-4x+ax+b$

equate Gregory's expression to Felicia's expression

$-12-4x+ax+b=-5x-10$

$-12+b=-10$ -----> $b=2$

$-4x+ax=-5x$ ------> $a=-1$

Gregory's expression is

$-12-4x+2-x$

therefore

The missing terms are 2 and -x

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3 years ago

Write out the following number is words: 3,508

IRISSAK [1]

Three thousand five hundred eight

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3 years ago

Read 2 more answers

Need help simplifying

juin [17]

Answer:

I think it should be:

8 0

3 years ago

(6y^2-7y-3)-(2y^2-9y-7) simplify

madreJ [45]

6y^2-7y-3-2y^2+9y+7 (pretend that you're multiplying -1 to 2y^2-9y-7 which is why 9y and 7 are positive now).
Now you're able to simplify your problem, so...

6y^2-2y^2= 4y^2
-7y+9y= 2y
-3+7=4

4y^2+2y+4

Might want to check my math but that's how you do it.

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According to the graph the system of linear equations has how many solutions

Maurinko [17]

Answer:

infinitely many

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