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Aleksandr-060686 [28]
3 years ago
8

The table below represents a linear function f(x) and the equation represents a function g(x):

Mathematics
2 answers:
Mademuasel [1]3 years ago
5 0

Answer:

Part A: The slope of g(x) is greater than the slope of f(x).

Part B: Function g(x) has greater y-intercept.

Step-by-step explanation:

The function f(x) passes through the points (-1,-3), (0,0) and (1,3). It means the y-intercept of the function is 0.

If a line passes through two points, then the slope of the function is

m=\frac{y_2-y_1}{x_2-x_1}

Let as consider any two points of the function, (-1,-3) and (0,0).

m=\frac{0+3}{0+1}=3

The point slope form of a linear function is

m=mx+b                .... (1)

Where, m is slope and b is y-intercept.

The slope of f(x) is 3 and y-intercept is 0, therefore the function f(x) is

f(x)=3x

The given function is

g(x)=7x+2            .... (2)

From (1) and (2), we get

m=7,b=2

The slope of g(x) is 3 and y-intercept is 2.

Part A: Since the slope of f(x) is 3 and the slope of g(x) is 7, therefore the slope of g(x) is greater than the slope of f(x).

Part B: Since the y-intercept of f(x) is 0 and y-intercept of g(x) is 2, therefore the function g(x) has greater y-intercept.

Eddi Din [679]3 years ago
3 0

A: Looking at the last two rows of the table of f(x), the slope is simply (3-0)/(1-0) = 3, while the slope of g(x) is the coefficient of the variable x, which is 7.


B. y-int is the y value when x = 0. f(x) has a y-int of 0, which g(x) is 2. The latter has a greater y-int.

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