Answer:
Linear function
y = 2x - 1
Step-by-step explanation:
This is a linear function because the line is straight, having no curved.
The equation for a linear graph is y=mx + b.
x and y represent points on he graph.
"m" represents the slope of the graph. Reading from left to right, if a positive slope, then the graph continues upward. If negative, then it's a graph down downwards.
"b" represents the y-intercept, when the graph hits the y-axis. It's also the initial value.
In the photo, we can see the y-intercept is (0, -1).
Slope is calculated by rise over run. Choose two random points on the graph. Count the "rise", or how many vertical units are between the points. If the point on the right is lower than the point on the left, the rise is negative. Count the "run", which is the number of horizontal units between the points.
For the point (0, -1) and (3, 5).
m = rise/run
m = 6/3
m = 2
Substitute m=2 and b= -1 into the equation of a line.
y = 2x - 1
Answer:
See below
Step-by-step explanation:
<u>20% loss a year with initial value of £6000 can be shown as function:</u>
V(t) - is the value after t years
a) t = 1 year
b) t = 3 years
- V(3) = 6000*0.8^3 = £3072
c) t = 8 years
- V(8) = 6000*0.8^8 = £1006.63
Answer:
See attached picture.
Step-by-step explanation:
The equation is in point slope form 
where m is the slope and 
is a point.
For the equation y-2 = 23(x+4), graph the point (-4,2). Then from this point count up 23 and over to the right 1.
This is the graph of the line.
Answer:
-2
Step-by-step explanation:
Answer:
32 seed packets
Step-by-step explanation:
15/4=3.75
120/3.75=32
