For this case you have the following advantages:
1) you can see the graph of both equations
2) you can see where the equations intersect
3) the point of intersection represents the solution to the system of equations.
4) You can solve the problem in much less time than doing it by hand
5) You can find very accurate solutions.
Answer: *See attachment*
I'll have to ask you to excuse my handwriting- I had to write pretty fast.
Anyway, I hope this helps!
LaciaMelodii :)
You can see it easily if you graph A(10,0) & B(20,0) on a on a system of perpendicular axis. The horizontal values (x value =10 & 20) are on the x axis & the vertical values (y value=0 & 0) can't be on the y axis since y values are zero
Answer:
A.
Step-by-step explanation:
you have to find the discriminant
b²-4ac for each equation
if discriminant < 0 no real solutions because will be negative under the squareroot whhan you try to find the roots
if discriminant = 0 there is only one solution
if discriminant > 0 two real solutions
for your given problems
A. discriminant =(-2)²-4*2*15 will be negative
I don’t have the answer but for questions like that go to Demos Graph Calculator and it will say the answer, after you put in the points
