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Zorluk: KolayLinear Functions and Graphs

The table below shows some values of the linear function ff.

xxf(x)f(x)
1155
441717
772929

What is the slope of the graph of ff in the xyxy-plane?

  1. 44Cevap
  2. B
    14\frac{1}{4}
  3. C
    33
  4. D
    55

Cevap

The slope of the graph of ff in the xyxy-plane is 44.
The slope of a linear function can be found using any two points from the table, (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2), with the formula m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}. Using the points (1,5)(1, 5) and (4,17)(4, 17), the slope is 17541=4\frac{17 - 5}{4 - 1} = 4.

Adım Adım Çözüm

1
Select two points from the table to calculate the slope.
Using the points (1,5)(1, 5) and (4,17)(4, 17), we have x1=1x_1 = 1, y1=5y_1 = 5, x2=4x_2 = 4, and y2=17y_2 = 17.
Any two points on a line can be used to find its constant slope.
2
Apply the slope formula m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}.
m=17541m = \frac{17 - 5}{4 - 1}
The slope formula calculates the ratio of the change in the vertical direction (yy) to the change in the horizontal direction (xx).
3
Simplify the expression to find the final slope value.
m=123=4m = \frac{12}{3} = 4
Subtracting the coordinates and dividing gives the simplified slope.

Anahtar Kavram

Calculating the slope of a linear function from a table of values.
Tahmini Süre:45s
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