1. Functions of the form f(x)=ax+b, where a is non zero, are called "linear functions" and the graphs of them are inclined lines.
2. If a>0, the line is increasing, so it gets higher as we move x to the right
If a<0, the line is decreasing.
3. There is no x we are not allowed to plug in the function: so Domain = all Real numbers
4. Since the lines are either increasing or decreasing, f(x), represented by the y values, take all values from -∞ to +∞. So Range = all Real numbers.
f(x)=4x (increasing line, 4>0) ,
g(x)=-x+4, h(x)=-4x (decreasing lines, -1<0, -4<0)
all f, g, h have Domain AND Range : All real numbers
Answer:
which data? are you sure this question is complete
Answer:
A. y = -5x + 11
Step-by-step explanation:
The general form of the equation of a line is given as
y - y1 = m (x - x1)
where m is the slope and x1, y1 are the coordinates of a point on the line.
m = (y2 - y1)/(x2 - x1)
Given the points (1,6) and (3, -4)
m = (-4-6)/(3-1)
=-10/2
= -5
The equation of the line will be
y - 6 = -5(x -1)
y - 6 = -5x + 5
Add 6 to both side
y = -5x + 5 + 6
y = -5x + 11
Option A
Answer:
The size of the shorter piece is 9cm, because 9+(9+6)=24
