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>
Answer:
The number of 57-cent stamps that Julie bought is 12
Step-by-step explanation:
Given equation
0.57 s + 0.3 ( s − 6 ) = 8.64
Open bracket
0.57s + 0.3s - 1.8 = 8.64
Collect like terms
0.87s = 8.64 + 1.8
0.87s = 10.44
Divide both sides by 0.87
s = 12
The number of 57-cent stamps that Julie bought is 12
that's the answer okayyyyyy
y = mx + b
When x = 0, b is what is left on the right hand side of the equation. So the point is (0,b). This is more commonly called the y intercept. For example
y = 4x + 6
When x is 0 you get
y = 4(0) + 6
y = 0 + 6
y = 6
So in this case 6 is the y intercept. and the equation becomes y = 4x + 6
Answer: y intercept
.75x+5 ≤ 12
Explanation:you need to spend the 5 dollars to get in and the x is the number of games you play so all of that needs to be less than or equal to 12