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sveticcg [70]
3 years ago
14

1. Explain, without graphing, how you can determine whether the table below represents a

Mathematics
2 answers:
diamong [38]3 years ago
6 0

Answer:

below

Step-by-step explanation:

you can find the distance between the y values for each x value and if it comes out to be an even increase/decrease you know it is linear

liubo4ka [24]3 years ago
4 0

Answer:

It does not form a linear equation.

Step-by-step explanation:

For this question, you should check that they all have the same gradient.

To work out the gradient, use \frac{y_{2}-y_{1}}{x_{2}-x_{1}}.

Using the top 2 rows, this gives \frac{-1--3}{-2--6}, or \frac{2}{4}, simplified to \frac{1}{2}. This means for every increase in x by 1, y increases by \frac{1}{2}.

Between the first 2 rows, x increases by 4 and y by 2 (half of 4), so it is true.

Between the second and third rows, x increases by 2 and y by 2 (which isn't half of 2). This is false, meaning this does not form a linear equation.

**This question involves solving linear equations using gradients, which you may want to revise. I'm always happy to help!

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Explain when a relation is also a function
nordsb [41]

Answer:

A relation is a function if the x-values map to only one y-value. In other words, if a relation is one-to-one or many-to-one it is a function.

Step-by-step explanation:

4 0
3 years ago
Ana starts eating lunch at 12:15 pm she finishes eating lunch 49 mins later what lock shows the time that Ana finishes eating lu
Oduvanchick [21]

Answer:

What kind of problem? Multiplication? Division? What?

Step-by-step explanation:

3 0
2 years ago
Koji is installing a rectangular window in an office building. The window is 823 ft wide and 534 ft high. The formula for the ar
IrinaK [193]
A = b * h
b = 8 2/3
h = 5 3/4

A = 8 2/3 * 5 3/4.....turn to improper fractions
A = 26/3 * 23/4
A = 598/12
A = 49 5/6 ft^2 <====
4 0
3 years ago
mary had 1 3/4 pound of blackberries. Mary's friend ate 3/4 of the blackberries. How many pounds of blackberries did Mary friend
OLEGan [10]

Hey there! I'm happy to help!

If Mary's friend at 3/4 of blackberries, we will simply multiply the total number of blackberries by 3/4 to find how many blackberries Mary ate.

3/4×1 3/4= 1 5/16

Therefore, Mary's friend at 1 5/16 pounds of blackberries.

I hope that this helps! Have a wonderful day!

3 0
3 years ago
What is the answer? <br> Expand and simplify 6(2x-3)-2(2x+1)
vitfil [10]

Answer:

8x-20

Step-by-step explanation:

Distribute:

=(6)(2x)+(6)(−3)+(−2)(2x)+(−2)(1)

=12x+−18+−4x+−2

Combine Like Terms:

=12x+−18+−4x+−2

=(12x+−4x)+(−18+−2)

=8x+−20

Answer:

=8x−20

7 0
3 years ago
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