I'm assuming you're referring to problem 6. You are asked to find the number of x intercepts or roots, which is another term for "zero". I prefer the term root or x intercept as "zero" seems misleading. Anyways, all we do is count the number of times the graph crosses the x axis. This happens 4 times as shown in the attached image below. I have marked these points in red. The graph can directly cross over the x axis, or it can touch the x axis and then bounce back. Either way, it is considered an x intercept.

<h3>Answer: there are 4 x intercepts (or 4 roots)</h3>

7 0

3 years ago

Read 2 more answers

Please help with Math :) Thanks!

algol [13]

Last choice the area becomes 25 times greater

6 0

2 years ago

Four times the first of three consecutive even integers is six more than the product of two and the third integer. Find the inte

sesenic [268]

First integer = x

Second integer = x + 2

Third integer = x + 4

Since four times the first integer equals six more than the product of two and the third integer.

4x = 6 + 2(x + 4)

4x = 6 + 2x + 8

2x = 14

x = 7.

Hence,

First integer = x = 7

Second integer = x + 2 = 7 + 2 = 9

Third integer = x + 4 = 7 + 4 = 11.

hope this helps

8 0

2 years ago