he equation below represents function a and the graph represents function b: function a f(x) = – 2x 1 function b graph of line going through ordered pairs negative 1, negative 5 and 2, 1 and 3, 3 which equation best compares the slopes of the two functions? slope of function b = 2 x slope of function a. slope of function a = slope of function b slope of function a = 2 x slope of function b slope of function b = – slope of function a
slope of function a = -2
slope of function b = (1 + 5)/(2 + 1) = 6/3 = 2
slope of function b = - slope of function a.
Answer:
Option D.
Step-by-step explanation:
The slope intercept form of a line is
Function a: \(y=mx+b\)
where, m is slope and b is y-intercept.
The given function is
\(f(x)=-2x+1\)
The slope of the line is -2 and y-intercept is 1.
If a linear function passes through two points, then the slope of the line is
\(m=\frac{y_2-y_1}{x_2-x_1}\)
It is given that the graph of function b passes through the points (2,1) and (3,3).
\(m=\frac{3-1}{3-2}\)
\(m=\frac{2}{1}\)
\(m=2\)
The slope of function b is 2.
Slope of function b = – Slope of function a
Therefore, the correct option is D.