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2 years ago

How do you determine if 5x-7y=14 is a function?

2 answers:

6 0

You can type that function in a graphing calculator and either see the graph or the table. If you put that function in a table, then you have to make sure that x isn't repeating itself. If you look at the graph, then you have to do the vertical line test

Pavlova-9 [17]2 years ago

3 0

One way is to graph it and do the vertical line test
it is not a function if we can draw a vertical line in the graph that passes through 2 points of the graph

if we graph this function, we see there is no place we can draw a vertical line and hit the line twice

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Suppose that there are two types of tickets to a show: advance and same-day. The combined cost of one advance ticket and one sam

____ [38]

We can set up 2 equations given the information.
Let the price of advance ticket be represented by A and same day ticket by S

A + S = 50
20A + 40S = 1700

Solve for A in the first equation by subtracting S on both sides.
U will get A = 50 - S

Now substitute 50 - S for A in the second equation.

20 (50 - S) + 40S = 1700
1000 - 20S + 40S = 1700
20S = 700
S = 35

Same day ticket costs $35 and advance ticket costs $15

6 0

2 years ago

9x-2y=11 5x-2y=15 what is the solution to the above system of equations ASAP

natali 33 [55]

9x - 2y = 11 ... (i)

5x - 2y = 15 ... (ii)

Subtracting equation (ii) from (i) we get;

4x + 0 = -4

4x=-4 , x = -1

Replacing x = -1 in equation (i) we get;

9(-1) - 2y = 11

-9 - 2y = 11

-2y = 20

y = 20 ÷ -2 = -10

The solution to the system of equations is (-1,-10).

8 0

2 years ago

Read 2 more answers

I’ll give someone brainliest if they answer this

Dimas [21]

Answer:

2. The answer should be the last one.

3. The answer should be the first three.

Step-by-step explanation:

Question 2

KE = (1/2)mv²

2KE = mv²

v² = 2KE/m

v = ±√(2KE/m)

Therefore the answer should be the last one.

Question 3

b^(1/2) * b^(5/2)

Remember that the product rule states that b^x * b^y = b^(x+y)

So this means b^(1/2) * b^(5/2) = b^(1/2+5/2) = b^(6/2) = b^3

Also remember that the power rule states that √b = b^(1/2)

so this means b^(6/2) can also be written as (√b)^6

Therefore the answer should be the first three.

If you want to double check all of your answers, just replace b with a number (for example, 2), and plug all of the choices into the calculator. Just make sure you are very careful when typing into the calculator.

3 0

2 years ago

Whats the best ship-name for Matthew and Averie and whats 134x3

Anarel [89]

Mathrie 134x3= 402 ship names are my specialty:)

7 0

2 years ago

Find the slope of the line that contains the points (-5, 3) and (-1,-5).

Nutka1998 [239]

Look at the attached picture⤴

Hope this will help u....

8 0

2 years ago