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Alenkinab [10]
3 years ago
5

i have posted this like 5 times so plz don't just pass it up. i need real help and i need it soon. i need help with Linear Equat

ions. i need to be able to under stand them. who ever helps me will get a nice reward.
Mathematics
2 answers:
wlad13 [49]3 years ago
6 0

Answer:

y=mx+b

Step-by-step explanation: Linear lines on graphs are straight lines, and have the same slope for each point.

the slope of a line can be read y/x which is where you go up/down for the y value and left or right for x values. In the equation the variable that represents  m.

The b is the y intercept or where the line meets the y axis.

the x stands for the x value that you can plug into the equation to solve for y.

Once you do that, if you need to you can plot a point on a graph with the y and x value (x,y)

Gwar [14]3 years ago
5 0

Example:

y = 2x + 1 is a linear equation:

  • When x increases, y increases twice as fast, so we need 2x
  • When x is 0, y is already 1. So +1 is also needed
  • And so: y = 2x + 1

Here are some example values:

x y = 2x + 1

-1 y = 2 × (-1) + 1 = -1

0 y = 2 × 0 + 1 = 1

1 y = 2 × 1 + 1 = 3

2 y = 2 × 2 + 1 = 5

-----------------------------------------------------------------------------

Each solution is a pair of numbers (x,y) that make the equation true. Solving a linear equation usually means finding the value of y for a given value of x. If the equation is already in the form y = mx + b, with x and y variables and m and b rational numbers, then the equation can be solved in algebraic terms.

i wish you the best <33

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f^2 = 28^2 + 15^2 -2*28*15Cos87        28^2 = 31^2 + 15^2 -2*31*15CosG 
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f^2 = 965.0378                                    784 - 1186 = -930CosG
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Side h =  15                     Angle H =29  degrees
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