<h3>
Answer: True</h3>
The key word here is "may" meaning that we could easily have 3 rational roots as well. An example of a cubic having 3 irrational roots would be
(x-1)(x-2)(x-3) = x³ - 6x² + 11x - 6
This has the rational roots x = 1, x = 2, x = 3.
However, we could easily replace 1,2,3 with any irrational numbers we want. So that's why the statement "a cubic has three irrational roots" is sometimes true.
In some cases, a cubic may only have 1 real root and the other 2 roots are imaginary.
What is:
k/3 + 17 = 12?
k = -15
Select any two coordinates from the graph such as (7,4) and (9,7). The formula of slope is rise/run or y2-y1/x2-x1
(4-7/(7-9)=(-3)/(-2)= 1.5
The slope of the graph is 1.5!
Answer:
<h3>Y=1/3x+3</h3>
Step-by-step explanation:
To solve this problem, first, you have to use the slope formula of y₂-y₁/x₂-x₁=rise/run. Remember to solve this problem, use slope-intercept form of y=mx+b.
m represents the slope.
b represents the y-intercept.
Y₂=4
Y₁=1
X₂=3
X₁=(-6)
Solve & simplify.
The slope is 1/3.
Y-intercept is 3.
y=1/3x+3
In conclusion, the correct answer is y=1/3x+3.
