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Natali [406]
3 years ago
8

Someone explain to me what y=mx+b please

Mathematics
2 answers:
antoniya [11.8K]3 years ago
8 0
Y=mx+b is The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.
zimovet [89]3 years ago
4 0

y = mx + b is what's called the slope formula.

It's used for when you want to know what the formula for a line is.

y is just the y value.

Sometimes, a question will ask for you to find a line with some slope and going through some point. In this case, you would replace y with the y value of that point.

However, when you're finished with your equation, y should always be a variable.

m is the slope.

To find the slope, you have to use the point-slope formula. When given two points, you put them into this equation: \frac{y_2-y_1}{x_2-x_1}

When you're finished with your equation, m should be a number.

x is just the x value.

Sometimes, a question will ask for you to find a line with some slope and going through some point. In this case, you would replace x with the x value of that point.

However, when you're finished with your equation, x should always be a variable.

b is the y-intercept, or when x = 0.

This is usually what you'll need to find in y = mx + b. What will likely happen is you'll given everything but b. All you need to do then is plug in the values you're given into this equation.

When you're finished with your equation, b should be a number.

If you have any questions, let me know! I'm happy to edit my response with more information if need be.

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Bill is shopping for folders, notebooks, and pencils for the first day of school. A notebook costs 4 times as much as a folder.
spin [16.1K]

<u>Answer:</u>

$14

<u>Step-by-step explanation:</u>

Assuming the cost of folder to be x, then the cost of notebook will be 4 x and the cost of set of pencils will be 2 x.

Cost of the folder = $2

Cost of notebook = 4 × 2 = $8

Cost of pencil = 2 × 2 = $4

Total cost of 1 folder, 1 notebook and 1 set of pencils = $2 + $8 + $4 = $14

4 0
2 years ago
Please answer: <br> p - 4 = -9 + p
kirill115 [55]

Answer:

There are no values of  p  that make the equation true.

(No solution)

Step-by-step explanation:

4 0
2 years ago
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A cone has a volume of 6782.4 cubic centimeters and a radius of 18 centimeters. What is its height?
ELEN [110]

Answer:   19.99cm

Step-by-step explanation: trust

4 0
2 years ago
For which value of m does the graph of y = 18x2 + mx + 2 have exactly one x-intercept?
Rashid [163]
Y = 18 x² + m x + 2
Exactly one x - intercept is for:
D = m² - 4 · 18 · 2 = 0
m² - 144 = 0
m² = 144
Answer:
m = -12 or m = 12 
5 0
3 years ago
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Can someone help me find AB and BC
Bond [772]

  • 3x + 2x + 5 + 5x + 15 = 180 [angles on a line add to 180 degrees]
  • 10x + 20 = 180 [combine like terms]
  • 10x = 160 [subtract 20 from both sides]
  • x = 16 [divide both sides by 10]

Arc AB measures 3(16) = 48 degrees.

Arc BC measures 2(16) + 5 = 41 degrees.

7 0
1 year ago
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