Hello :)
When x=-1
y=2×(-1)-3=-2-3= -5
A= -14/3
I just divided by 3 on the last step
A.between 8 and 10 years of age,
<span>C.between 10 and 12 years of age
</span>
The slope is 6 and the y-intercept is -8
X = 15. You can do this by multiplying both sides by 12. When you do this your equation will look like this...
60/4 = x
Finally, all you need to do is simplify :)
x = 15