Aplant is 20 inches tall. if the plane grows 2h inches each week for the next 4 weeks, and h inches for each 2 weeks after that, which expression shows the height of the plant in inches after 6 weeks?

options:

a: 20+20h
b: 20-10h
c: 20-2h
d: 20+h

20+10h

Step-by-step explanation:

Height of plant = 20 inches

The plant grows 2h inches each week for the next 4 weeks

So, The plant increase by length in 4 weeks =

So, Length after 4 weeks = 20 +8h

Now we are given that after 4 weeks there is an increase of h inches for each 2 weeks

So,  The plant increase by length in 2 weeks =

So, Height of plant after 6 weeks =  20 +8h + 2h = 20+10h

Hence Height of plant after 6 weeks is

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?