Answer:
So we know that y=1/2x. So we apply this equation on each x.
x=-2, so y=1/2*-2 which is -1. so y = -1
x=0, so y = 1/2 * 0 which is 0. so y=0
x=2, so y = 1/2*2 which is 1. so y=1
Hope this helps :))
Answer:
you have not put the full question
Step-by-step explanation:
Answer:
The line is ;
4y = -x + 56
or
y = -x/4 + 14
Step-by-step explanation:
Generally, the equation of a straight line is;
y = mx + c
where m represents the slope
so for y = 4x - 6
The slope is 4
If two lines are perpendicular, the product of their slopes is -1
So for the second line, the slope will be -1/4
The equation in the point slope format will be ;
y-12 = -1/4(x-8)
y-12 = -x/4 + 2
Multiply through by 4
4y-48 = -x + 8
4y = -x + 8 + 48
4y = - x + 56
Answer:
we can write an equation wich describes the amount of aspirin in her system in respect to the hours (x)
a(x) = 520 * 0.78^x
78% is what's left on respect to one hour before and the "to the power of x" part describes how often we multiply/how many hours have passed
actually, if you haven't learned a better method yet, you could just grab your calculator, and type in 520 * 0,78
calculate it
then repeat multiplying the last answer till you go just below 80. the number of steps is the number of full hours passed.
this would take 8 steps
do you need a more sophisticated method to nail it down to the minute?
got no clue how far you are with the whole topic yet.
anyways, hope this helps you :)
