1) Finding the zeros of this function f(x) =x² +3x -18
f(x) = x²+3x-18 <em>Factoring this equation, and rewriting it</em>
<em />
<em>Which two numbers whose sum is equal to 3 and their product is equal to 18?</em>
<em>6 -3 = 3 and 6 *-3 = -18</em>
<em />
<em>So we can rewrite as (x +6) (x-3)</em>
<em> </em>
(x+6)(x-3)=0 <em>Applying the Zero product rule, to find the roots</em>
x+6=0,
x=-6
x-3=0,
x=3
S={3,-6}
2) Setting a table, plugging in the values of x into the factored form: (x-6)(x-3)
x | y |
1 | -14 (1 +6)(1-3) =-14
2 | -8 (2 +6)(2-3) =-8
3 | 0
4 | 10
-5 | -8
-6 | 0
3) Plotting the function:
The correct question is
A triangle has side lengths of 7 centimeters, 5 centimeters, and c centimeters. enter a value to complete the inequality that describes the possible values for c, the length of the third side of the triangle.
we know that
The sum of the lengths<span> of any two </span>sides<span> of a </span>triangle<span> must be greater than the </span>third side
If c is the smallest number, then
5 + c > 7
c > 2
If c is the largest number, then
5+7 > c
12 > c----------> c < 12
the answer is
The value of c must be in the interval (2,12)
The explanation of the angle is illustrated below.
<h3>How to explain the angle?</h3>
It should be noted that an example that contradicts the information given about the angle is that if two rays overlap, it's still a ray but not an angle.
Then, a modified definition will be that this common endpoint is called the vertex of the angle and the two rays are called the sides of the angle.
Learn more about angle on:
brainly.com/question/25716982
#SPJ1
Answer:
←
in standard form
Step-by-step explanation:
The equation of a line in standard form is.
were
- A is a positive integer and
As the equation in point-slope form
where m is the slope and 
is a point on the line.
as
using and 
then
←
in standard form
If you simplify the equation by adding the like terms, you get 3n+6=42
Then you can subtract 6 from each side
3n=36
Divide each side by 3
n=12
