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Debora [2.8K]
4 years ago
13

Y=2x-5 is the equation of a strait line graph. where does it cross the y axis Please help

Mathematics
2 answers:
Valentin [98]4 years ago
7 0
It crosses the y-axis at -5. :)
nignag [31]4 years ago
5 0
Y=mx+b
b=yint=where the line crosses the y axis
y=2x-5
line crosses at y=-5

or at pont (0,-5)
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1. Determine the quotient: 2 + 13
nlexa [21]

Answer:

15

Step-by-step explanation:

3 0
3 years ago
Suppose the distributor charges the artist a $40.00 cost for distribution, and the streaming services pay $4.00 per unit. (Note:
Nookie1986 [14]

The question is an illustration of a linear equation

  • The y-intercept is 40
  • The slope is 4
  • The equation of the line is y =4x + 40
  • You pay the distributor after 1 charge
  • You pay $750,000 for 177.5 streams

<h3>(a) How to calculate the y-intercept</h3>

From the question, we have the following parameters:

  • Cost of distribution: $40.00
  • Rate = $4.00 per unit

The cost of distribution represents the y-intercept, while the rate represents the slope.

Hence, the y-intercept is 40

<h3>(b) How to calculate the slope</h3>

In (a), we have:

The rate represents the slope.

Hence, the slope is 4

<h3>(c) The equation of the line</h3>

A linear equation is represented as:

y = mx + b

Where:

  • m represents the slope
  • b represents the y-intercept

Using the results in (a) and (b), the linear equation is:

y =4x + 40

See attachment for the graph of the equation

<h3>(c) The number of streams you pay the distributor</h3>

From the graph, we can see that the line touches the x-axis at the negative x-axis.

This means that, you pay the distributor after 1 charge

<h3>(d) The number of streams to pay $750,000</h3>

This means that: y = 750.

So, we have:

y =4x + 40

750 = 4x + 40

Subtract 40 from both sides

4x = 710

Divide both sides by 4

x = 177.5

Hence, you pay $750,000 for 177.5 streams

Read more about linear equations at:

brainly.com/question/14323743

7 0
2 years ago
Please verify the following trigonometric identities.
Nina [5.8K]

Seems like there is a correction in the first question (RHS is tanx.tany)

(i) For convenience: let tanx = a ; tany = b

Thus, tanx + tany = a + b

Moreover, cotx = 1/tanx = 1/a ; coty = 1/b

Thus,

cotx + coty = 1/a + 1/b = (a + b)/ab

Hence,

=> (tanx + tany)/(cotx + coty)

=> (a + b) / { (a + b)/ab }

=> ab(a + b)/(a + b)

=> ab => tanx.tany , proved.

(ii) For convenience: let sinx = a ; cosx = b

As we know, sin²x + cos²x = 1 => a²+b²=1

=> (a³ + b³)/(a + b)

=> (a + b)(a² + b² - ab) / (a + b)

=> (a² + b² - ab)

=> 1 - ab => 1 - sinx.cosx , proved

(iii): let x/2 = A

=> tan(x/2) + cosx.tan(x/2)

=> tanA + cos2A.tanA

=> tanA [1 + cos2A]

=> tanA (2cos²A) {1+cos2A = 2cos²A}

=> (sinA/cosA) (2cos²A)

=> sinA (2cosA)

=> 2sinAcosA

=> sin2A

=> sin2(x/2)

=> sinx proved

Letting x/2 = A is not mandatory. I did it to decease words*(in a line).

<u>Indentities used</u>:

• sin²A + cos²A = 1

• (a³ + b³) = (a + b)(a² + b² - 1)

• 1 + cosA = 2 cos²(A/2)

• tanA = sinA/cosA.

• 2sinAcosA = sin2A

8 0
3 years ago
Read 2 more answers
3x square+6y Square when X=0 and y=2 with steps pls​
Sauron [17]

Answer:

If the equation is 3x^2+6y^2, when x=0 and y=2.

Then, 3(0)^2+6(2)^2=

So, 0+6(4)= 24

Therefore, the answer is 24.

Step-by-step explanation:

8 0
3 years ago
A small theater had 8 rows of 23 chairs each. Workers just removed 6 of these chairs. How many chairs are left?
horsena [70]

Answer:

178 chairs

Step-by-step explanation:

(something) rows of (something) columns always means to multiply. So, let's multiply 8 x 23:

8 × 23 = 184

Now, since the workers removed 6 of the chairs, there are 6 less chairs in the theater. Let's subtract 6 from 184 to get our final answer:

184 - 6 = 178

Hope this was helpful! Let me know if you have any other questions abou this problem. :)

5 0
3 years ago
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