What is the end behavior of the graph of the polynomial function y = 7x12 – 3x8 – 9x4? . x -> y-> __ and as x-> y->

As x > ∞, y> ∞

As x > -∞, y> ∞

Step-by-step explanation:

y = 7x^12 – 3x^8 – 9x^4

To find the end behaviour, we look at the leading coefficient and the largest exponent

In the given equation, the largest exponent is 12 that is an even number

the leading term is 7x^12, so leading coefficient is +7

When the largest exponent is even and leading coefficient is positive then the graph of y goes up(to infinity) on the left as well as on the right side of x

As x > ∞, y> ∞

As x > -∞, y> ∞

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.