A doesn’t equal 100 so probs b
If d represents diameter than you have answered you're question, however if you need the radius, the radius is always half the diameter, meaning that the radius would be 9
Answer:
4x - 3
Step-by-step explanation:
We can use the slope-intercept form of the equation of a line.
Slope:
For each change of 1 in x, there is a change of 4 in y.
slope = (change in y)/(change in x)
slope = 4/1 = 4
Intercept:
The y-intercept is the value of y when x = 0.
Look at the table. The first line has x = 1, y = 1.
Since we already know that each time we add 1 to x, we add 4 to y, we can find out what the line with x = 0 is.
Start with x = 1, y = 1.
Subtract 1 from x and 4 from y.
You get x = 0, y = -3.
That y-intercept is -3.
That that we know the slope and the y-intercept, we can write the equation.
y = 4x - 3
The last line is:
x 4x - 3
The first one equals 0 the second one also equals 0
