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3 years ago

2x - y = 2s 2x - 2y = 4s The lines whose equations are shown intersect at which point?

Mathematics

1 answer:

pentagon [3]3 years ago

3 0

The lines whose equations are shown intersects the point (0, -2s)

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Write the equation of the line that contains the points (4, −7) and (1, 5). The slope of the line that contains the points (4, −

deff fn [24]

Slope = (5+7)/(1-4) = 12/-3 = -4

slope = -4

y = mx + b
-7 = -4(4) + b
-7 = -16 + b
b = 9

equation
y = -4x + 9

4 0

3 years ago

Read 2 more answers

The sum of three numbers is 78. The second number is 10 more than the first, and the third number is two times the second number

Anestetic [448]

Step-by-step explanation:

a+b+c=78

b=10+a

c=2b

then, we back the first

a+10+a+2b=78

2a+2b=78- 10

2a+2(10+a)=68

2a+2a=48

4a=48

a=12

b=22

c=44

4 0

3 years ago

Help me!!

Vladimir79 [104]

<u>ANSWER: </u>

x − intercept is ( $\frac{8}{3}, 0$ ) , y − intercept is (0,8).

<u>SOLUTION: </u>

Given, linear equation is y = 3x – 8 --eqn (1)

We need to find x – intercept and y – intercept i.e. where the line meets x – axis and y – axis

Now, let us find x – intercept. So put y = 0 in eqn (1)

0 = 3x – 8

3x = 8

x = $\frac{8}{3}$

So, point where given line meets x – axis is ( $\frac{8}{3}$ ,0)

Now, let us find y – intercept. So put x = 0 in (1)

y = 3(0) – 8

y = 8

So, point where given line meets y – axis is (0,8).

Hence, x − intercept is ( $\frac{8}{3}$ ,0) , y − intercept is (0,8).

5 0

3 years ago

Evaluate the expression when n=3. 3 squared+ 16

natita [175]

3^2 + 16
= (3 • 3) + 16
= 9 + 16
= 25

~

5 0

3 years ago

The cost

VARVARA [1.3K]

The cost of the phone contract will be mathematically given as

C = 45 + 13m

This is further explained below.

<h3>What is the formula?</h3>

Generally, According to the information provided, the monthly cost of the fixed line rental is £45, and the price of calls made is £13, thus the monthly cost will be represented by the following:

C = 45 + (13 × m)

Therefore

C = 45 + 13m

As a result, the price of the phone contract will be equal to C = 45 plus 13m, where m is the number of months in the contract.