Smart Dot, multiply the cost per hour by number of hours (t) and add to the monthly fee:
C = 0.50t + 12
Communication plus: Multiply the cost per hour by number of hours (t)
C = 2.50t
Answer:
f(4) = 3
x = -1
Step-by-step explanation:
Line graphed shows a linear function.
Since this line passes through two points (4, 3) and (-1, 4)
Let the function is,
f(x) = mx + b
where 'm' = slope of the line
b = y-intercept of the line
Slope 'm' =
=
=
f(x) =
Since a point (4, 3) lies on the line,
f(4) =
3 =
b = 3 + 0.8
b = 3.8
Therefore, f(x) = -0.2x + 3.8
For x = 4
f(4) = -0.2(4) + 3.8
= -0.8 + 3.8
= 3.0
For f(x) = 4
4 = -0.2x + 3.8
0.2x = 3.8 - 4
x =
x = -1
The right answer is Option B.
Step-by-step explanation:
Given,
Purchase price of car with sales tax = $17300
DMV fees = 1.25%
Amount of DMV fees = 1.25% of purchase price
Amount of DMV fees =
Amount of DMV fees = $216.25
Total price = Purchase price + DMV fees
Total price = 17300 + 216.25
Total price = $17516.25
The total price of car with DMV fees is $17,516.25
The right answer is Option B.
Keywords: percentage, addition
Learn more about addition at:
#LearnwithBrainly
The order of operations tells you exponentiation is done before multiplication or addition. That is, the value of x is squared before the sign is applied.
Your result will be negative for any non-zero value of x.