Can someone me with these problems? !

Step-by-step explanation:

2) Slope can be written as rise over run:

3) Slope formula is:

4) Average rate of change is the slope of the given interval:

a) when x = 0, y = 0 and when x = 1, y = -3

b) when x = -2, y = 0 and when x = -1, y = 3

c) when x = 0, y = 0 and when x = 2, y = 0

what? ?

what type of question is thiss

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4