1). n+3=8
2). 2-3n=11
3). 1/4+x
4). 2x-1=12
5). 5x = 9x
Answer:
It would be D
Step-by-step explanation:
50% of 40 is 20.
40/2 =50.
Just divide the number by 2 anytime it asks for 50%.
Y = <span>b^x
when x = 1
y = b^1
y = b
Therefore, the value of b is the same as the value of y when x =1
From the graph,
When x = 1, y = 0.5
Therefore, b = 0.5
To confirm this
From the graph,
When x = -1, y = 2
Since </span>y = b^x<span>
2 = </span>b^-1
2 = 1/b
2b = 1
b = 0.5
When x = -2, y = 4
Since y = b^x
4 = b^-2
4 = 1/(b^2)
b^2 = 1/4
b = √(1/4)
b = 1/2
b = 0.5
Therefore, it is conformed that b = 0.5
is slope-intercept form, which is a way of writing an equation for a line.
In this equation, represents the slope and represents the y-intercept.
and are the coordinates of a point on the resulting line.
Here are some examples: