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3 years ago

Is (2,3),(4,7),(1,-3),(5,7),(-2,8) a function? Please help

Mathematics

1 answer:

erik [133]3 years ago

4 0

Answer:

Yes, this is a function.

Step-by-step explanation:

Every input has its own unique output (no x number goes to more than one y number).

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Simplify the expression:<br> 4r2–2+6

slava [35]

Collect like terms:
4r^2 + (-2 + 6)

Simplify:
4r^2 + 4

DONE !!

6 0

3 years ago

How would i explain negative exponents to a little kid

Tasya [4]

Negative exponets are like normal ones
ex. 2^-2=-4 another way to do it 2^-2=2^2 with a - so you can do 2^2=4 add the - and it becomes -4.

7 0

3 years ago

Please help! I really need it!

amm1812

Answer:

1. x > 4

2. m < 2

3. x > 2

4. x < -6

Step-by-step explanation:

These 4 inequalities will be solved the same way we solve equations. We take variables to one side and numbers to another and use algebra to solve. Each of them are solved shown below:

$4+6x$

so x is greater than 4, we can write (variable first):

x > 4

$m+16>8m+2\\16-2>8m-m\\14>7m\\\frac{14}{7}>m\\2>m$

so m is less than 2, we can write:

m < 2

$5x-1>13-2x\\5x+2x>13+1\\7x>14\\x>\frac{14}{7}\\x>2$

so x is greater than 2, we can write:

x > 2

$-3x-2>-x+10\\-2-10>-x+3x\\-12>2x\\\frac{-12}{2}>x\\-6>x$

so x is less than -6, we can write:

x < -6

8 0

3 years ago

Help pls btw I will give brainly

goblinko [34]

Answer:

$\frac{3}{8}$ feet²

Step-by-step explanation:

The area ( A) is calculated as

A = length × width

= $\frac{3}{4}$ × $\frac{1}{2}$ ← multiply numerators/ denominators

= $\frac{3(1)}{4(2)}$

= $\frac{3}{8}$

3 0

3 years ago

The graph of a line passes through the points (0, -2) and (6, 0). What is the equation of the line? 1. y = -2x + 6

densk [106]

Answer:

The Answer is: y = 1/3x - 2

Step-by-step explanation:

Giving points: (0, -2) and (6, 0).

First find the slope:

m = y - y1/(x - x1)

m = -2 - 0/0 - 6

m = -2/-6 = 1/3

Use the point slope form of the equation with point (0, -2) and solve for y:

y - y1 = m(x - x1)

y - (-2) = 1/3(x - 0)

y + 2 = 1/3x

y = 1/3x - 2

Hope this helps! Have an Awesome day!! :-)

8 0

4 years ago