Is y=x-y+2 linear or not?

Mathematics

1 answer:

garik1379 [7]3 years ago

7 0

Answer:

Yes it is linear

Step-by-step explanation:

A linear equation has the following form:

y = mx + b

where

m is the slope

b is the y-intercept.

You can also perform a vertical line test. If the line touches your graphed function in more than one spot, it is not a function.

The picture attached is the result when graphed.

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If DF = 9x-39, find EF.

otez555 [7]

$DF=DE+EF\\\\DF=9x-39\\DE=47\\EF=3x+10\\\\\text{substitute}\\\\9x-39=47+3x+10\\9x-39=3x+57\ \ \ |-3x\\6x-39=57\ \ \ \ |+39\\6x=96\ \ \ \ |:6\\x=16\\\\\text{put the value of x to the expression}\ 3x+10\\\\EF=3(16)+10=48+10=58$

Answer: EF = 58

7 0

2 years ago

Can you pls put in order I need help ASAP :3 thanks if you can. I will make Brainly

Brums [2.3K]

Answer:

This might get confusing but bear with me.

The top two are correct, leave them where they are. The 6th one down is step three, the 8th one down is step four, the 3rd one down is step five, the 4th one down is step six, the 7th ne down is step seven so leave it alone, and the 5th one down is step 8.

7 0

2 years ago

Please help (get brainliest)

skelet666 [1.2K]

Answer:

I belive its B.

Step-by-step explanation: