The linear function graphed below represents the height of a stalk of corn since a farmer began using a new fertilizer. what is the initial value?

there is no picture here. however, you can find the initial value at x = 0.

in problems like this, x is equal to time. since we are looking for how tall they were originally, we need time to equal 0.

the answer would be c, 4 feet

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.