Answer:
<em>
The slope is 2/5</em>
Step-by-step explanation:
<u>Calculating the Slope of a Line
</u>
Suppose we know a line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:
We are given the points (-5, -2) (5, 2). Let's compute the slope:
Simplifying:
The slope is 2/5
We can solve this problem using discriminant.
x^2-4x-12's discriminant is
(-4)^2-4*-12=16+48 which is clearly larger than 0
This means that it crosses over the axes 2 times.
In case you don't know what discriminant is, its in equation ax^2+bx+c
the discriminant is b^2-4ac.
If its positive it has 2 crosses with x axis, if negative then 0 crosses, if 0 then 1 cross.
Hope this helped at least a little bit :D
Answer:
The same line
Step-by-step explanation:
Recall that if two graphs, representing a system of equations has infinite solutions, this means that point on one graph must coincide with a corresponding point on the other graph. The only way that this can happen is if both graphs coincide with each other perfectly, which is to say that they are the same line.
Answer:
1.99
Example:
Increase 10 by 99%. 99% of 10 is 9.9 so increased value would be 10 + 9.9 = 19.9
10 x 1.99 = 19.9 ... same answer
Step-by-step explanation:
Because this is a sideways-opening parabola, and to the right to be specific, it will occupy Quadrants I and IV only. The vertex is at (3, 0).