All categories

3 years ago

Determine whether each equation defines y as function of x, 2x+y=8

Mathematics

1 answer:

solong [7]3 years ago

6 0

Answer:

Yes. This equation defines y as function of x.

Step-by-step explanation:

Step 1:

Solve the equation for y (this puts the equations in terms of y)

2x+y=8 becomes

y = 2x - 8

This is a linear equation, which is a funtion.

*Another way to solve this is to look at the graph. Graphing this equation gives us a line. Use the vertical line test to see if it's a function.

To pass the vertical line test (VLT), there can only be one y value to each x value along the graph. If it passes the VLT, the equation is a function.

If it fails the VRT, the equation is not a function.

You might be interested in

HEEEEEELLLLLLLLPPPPPPPPPPPPP-2/3+1/3

motikmotik

Answer:

the total will be 1

Step-by-step explanation:

ok so the denomitor are matching so you can add straight across

1/3 +2/3 = 3/3

3/3 = 1 whole so there fore your answer is 1

Angie<3 have the best of best day today

6 0

3 years ago

One way to show that a statement is not a good definition is to find a

guapka [62]

counterexaple

i hope it helps

4 0

3 years ago

How many meters does 20 yards equal

Yuliya22 [10]

Answer:

Step-by-step explanation:One yard equals 0.9144 meter. Therefore 20 yards = 20 * 0.9144 = 18.288 meters

3 0

3 years ago

Nitric acid (specific gravity 1.42) costs $51.95 per liter. A student spills 5.112 kg of nitric acid in the laboratory, what is

Leno4ka [110]

Answer:

The cost of wasted nitric acid is $187.02

Step-by-step explanation:

Since it is given that specific gravity of Nitric Acid is 1.42 Thus the density of nitric acid is

$\rho _{acid}=S.G\times \rho _{water}\\\\\\\rho_{acid}=1.42\times 1\frac{g}{cm^3}\\\\\rho_{acid}=1.42g/cm^3$

Now from the basic relation of mass volume and density we have

$\rho =\frac{Mass}{Volume}\\\\\therefore Volume=\frac{Mass}{\rho }$

Since the mass of the nitric acid is given to be 5.112 kg = 5112 grams

Thus the volume of nitric acid is

$Volume=\frac{5112}{1.42}=3600cm^3$

Now we know that 1000 cubic centimeters euals 1 litrer

Thus the calculated volume in liters is

$V_{liters}=\frac{3600}{1000}=3.6Liters$

Thus the cost of acid spilled equals

$Cost=3.6\times 51.95=187.02$

5 0

3 years ago

Will be MARKED AS BRAINLIEST :)Brenda walks dogs after school. She is planning to increase the rate that she charges by 20% in J

krek1111 [17]

Are there answer choices for this one because I got something kind of weird

3 0

3 years ago

Read 2 more answers

Determine whether each equation defines y as function of x, 2x+y=8​

Determine whether each equation defines y as function of x, 2x+y=8