I am pretty sure it is 2, since you want either x to equal 0 so 4 for the first and 2 for the second and then you subtract to get 2
Answer:
y = 1/40x + 20
Step-by-step explanation:
Slope-intercept equation format:
y = mx + b
m = slope/ gradient/ constant of variation/ rate of change
b = y-intercept
To find the slope, use the formula:
![\frac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
Find two random points:
1 - (0.5, 40) , 2 - (1, 60)
Plug in:
![\frac{60-40}{1-0.5}](https://tex.z-dn.net/?f=%5Cfrac%7B60-40%7D%7B1-0.5%7D)
Solve:
![\frac{20}{0.5}](https://tex.z-dn.net/?f=%5Cfrac%7B20%7D%7B0.5%7D)
Divide:
![\frac{1}{40}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B40%7D)
The y-intercept is when the x-coordinate is equal to 0.
The y-intercept is always the beginning.
So observing the graph, the first point is (0, 20)
The x-coordinate is 0.
Y intercept = 20.
Plug in both slope and y-intercept:
y = 1/40x + 20
Answer:
10
Step-by-step explanation:
First substitute x for 2
3(2) + 4
6+4
10 When x is 2 f = 10
Answer:
the correct answer is D!!!
Step-by-step explanation: