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Compare the key features of the linear functions f

and g
, given below.

f(x) = 2x+5


The function f(x)
 has a slope of 
, the function g(x)
 has a slope of 
. The y-intercept of the function 
 is greater than the y-intercept of function 
.

User Isthmuses
by
8.5k points

1 Answer

5 votes

The function f(x) has a slope of 2, the function g(x) has a slope of 3

The y-intercept of the function f(x) is greater than the y-intercept of function g(x)

How to compare the functions

Information given in the question include

a linear function graph and equation

The equation graphed is written in the slope intercept form s below

y = mx + c

where

m = slope

x = intercept

comparing with the f(x) = 2x + 5

m = 2 and c = 5

the slope, for the table is calculated using the points on the graph (0, 4) and (2, 10)

m = (y₀ - y₁) / (x₀ - x₁)

m = (4 - 10) / (0 - 2)

m = (-6) / (-2)

m = 3

c = y-intercept, from the table is (0, 4)

c = 4

The equation of the line is y = 4x - 6

Using point (1, 6) and the point - slope formula we solve for b

y - 6 = m (x - 1), m = 4

y - 6 = 4x - 4

y = 4x + 2

Compare the key features of the linear functions f and g , given below. f(x) = 2x-example-1
User CowWarrior
by
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