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Vlada [557]
3 years ago
9

Describe the meaning of the y-intercept

Mathematics
2 answers:
neonofarm [45]3 years ago
5 0

Answer:


Step-by-step explanation:

In the equation of a straight line (when the equation is written as "y = mx + b"), the slope is the number "m" that is multiplied on the x, and "b" is the y-intercept (that is, the point where the line crosses the vertical y-axis).

adoni [48]3 years ago
5 0

Answer:

y-value at intercept = f(0), the value of the function when x = 0

Step-by-step explanation:

The "y-intercept" of a graph (any graph, not just a straight line) is the y-value obtained when x = 0.  In other words, the y-intercept is the point at which the graph crosses the y-axis (whose equation is x = 0).  Very often the y-intercept represents the initial (beginning) value of functions whose domains include [0, +infinity).

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Answer:

The number of Television at the beginning was 90

The number of video cassette recorders at the beginning was 89

Step-by-step explanation:

Selling Price of 1 Television =$360.

Selling Price of 1 video cassette recorders for $270.

Let the number of Television at the beginning=x

Let the number of video cassette recorders at the beginning =y

Opening Stock =$56,430.

Therefore:

  • 360x+270y=$56,430.

It sells three quarters of the televisions and one third of the video cassette recorders for a total of $32,310.

\frac{3}{4}(360)x+\frac{1}{3}(270)y= \$32,310

270x+90y=32310

We then solve the two equations to obtain x and y.

  • 360x+270y=$56,430. (Multiply by 270)
  • 270x+90y=32310          (Multiply by 360)

97200x+72900y=15236100

97200x+32400y=11631600

Subtract

40500y=3604500

y=89

Substitute y=89 into 270x+90y=32310 to obtain x

270x+90(89)=32310

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