3 years ago

Why does the fact family for 81 and 9 only have two number sentences?

Mathematics

1 answer:

Genrish500 [490]3 years ago

3 0

One fact family is 9 times 9 = 81

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diamong [38]

Answer:

Step-by-step explanation:

Lets first solve the relation for "y". Shown below:

$3x=9-4y\\4y=-3x+9\\y=-\frac{3}{4}x+\frac{9}{4}$

This is clearly an equation of a line in the form $y=mx+c$

It will be a negatively sloped line, when graphed.

We can use vertical line test to determine function or relation. If a vertical line passes through only 1 point in the graph, we say that it is a function.

Think of a negatively sloped line. No matter where you draw a vertical line, it will only cut the line at 1 point.

So, this is definitely an equation of a function

Correct answer is A

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S_A_V [24]

The absolute value of an integer is the distance from zero. So, another way of thinking of is to ignore positive or negative. for example the absolute value of -126 is 126, same would go for positive 126.

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Janelle practices every afternoon

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Are angles 8 and 15 congruent supplementary or neither

kap26 [50]

Angles 8 and 15 are supplementary.

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