Answer:
w=2.5
Step-by-step explanation:
divide 12.5 by 5: 12.5/5=2.5, so w=2.5
Answer:
Check explanation
Step-by-step explanation:
Answer:
a=3.6, v=1.25 and r=25%
Step-by-step explanation:
The given exponential function is
We compare to the form:
We have a=3.6, b=1.25
The r is the percentage of increase or decrease.
We realized there is a 25% increase because
Hence
Answer:
y=-2x
Step-by-step explanation:
The function has the table:
x f(x)
-3 -6
-2 -4
-1 -2
0 0
Looking at the table, f(x) deceases by 2 each time. This is a constant rate of change called slope. This is a linear function and its equation can be written using y = mx+b. m = -2. b is the y-intercept for starting point where x = 0. When x=0, the table shows y=0. So b=0.
This means the rule is y = -2x.
