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3 years ago

Y = 3x + 4 What is the y-intercept? What is the slope?

Mathematics

2 answers:

Nata [24]3 years ago

8 0

Answer:

See below:

Step-by-step explanation:

Hello! I hope you are having a nice day! My name is Galaxy and I will be helping you today.

We can solve this problem in a single step, I'll start off with that.

When we look at the problem, we can see that its written in $y=mx+b$ form in which $m$ is the slope and $b$ is the y intercept.

Since we know this, we can find the slope and y intercept of your problem:

$y=3x+4$

$m=3\\b=4$

Therefore, the slope is 3 and the y intercept is $(0,4)$ .

Cheers!

AnnyKZ [126]3 years ago

6 0

Answer:

Slope = 3

Y-intercept = 4

Step-by-step explanation:

Our equation:

y = mx + b

Given equation:

y = 3x + 4

Now, let's compare both the equations.

=> y = mx + b = y = 3x + 4

We can clearly see that 'm = 3 and b = 4'

Therefore:

m = 3
b = 4

Hoped this helped.

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Miss has a sheet of wrapping paper 85cm in length and 60 cm in width. She cuts the paper into rectangular pieces of length 20 cm

dalvyx [7]

Answer:

Part a - 25 pieces

Part b - 4 sheets

Step-by-step explanation:

Part a

Think of this in terms of how many "units" can the total paper be cut into. Easiest way to keep track of units is by their area. In other words, take the total area and see how many unit areas fit into it:

Number of units = total area / unit area

N = (85 x 60) / (20 x 10)

N = 5100 / 200

N = 25.5

Therefore the greatest number of pieces the paper can be cut into is 25 units (the 0.5 doesn't count since it's not a full pieces).

Part b

Again, back to units. This time the "total" is 100, and our unit size is 25.5. So:

Number of units = total gifts / gifts per unit

N = 100 / 25.5

N = 3.9

Therefore 4 sheets of wrapping paper will be needed (you need to round the 3.9 up because wrapping paper sheets only come in whole numbers for the purposes of this question).

7 0

3 years ago

Please Help! I'm stuck!

atroni [7]

Answer:

See attached image

Step-by-step explanation:

If you have two marbles in a bag and you are choosing the marbles randomly twice, then we can look at fractions.

Each time, you have a 0.5 chance of picking the silver marble. After you pick that, you have another 0.5 chance of picking the silver marble again.

This applies with any combination.

This means that the probability of you getting two silvers in a row is 0.25.

Since the marbles are the same size and nothing is stopping you from choosing one, this probability applies to all combinations possible.

Hope this helped!

8 0

3 years ago

Find the inverse of the function y=2^3-5x

Korvikt [17]

Answer:

Step-by-step explanation:

To find the inverse, switch x and y, then solve for y

y=2^3-5x

x=2^3-5y

x-2^3=-5y

-(x/5)+((2/3)/5)=y

6 0

3 years ago

-16x-10>14-10x hi can u please help me with this

kompoz [17]

Answer:

x < -4

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Step-by-step explanation:

Step 1: Define inequality

-16x - 10 > 14 - 10x

Step 2: Solve for x

Add 16x to both sides: -10 > 14 + 6x
Subtract 14 on both sides: -24 > 6x
Divide 6 on both sides: -4 > x
Rewrite: x < -4

Here we see that any value x that is less than -4 would work as a solution.

4 0

3 years ago

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lutik1710 [3]

The answer would be C.

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3 years ago