Answer:
(-1,0) and (5,0)
Step-by-step explanation:
The roots are the points where the y-value is 0 and the point lies exactly on the x-axis.
(blank,0)
In this parabola, the points that are exactly on the x-axis is (-1,0) and (5,0)
Answer:
the cost of each cookie is 
the cost of each muffin is 
Step-by-step explanation:
Let
x-----> the cost of each cookie
y----> the cost of each muffin
we know that
-----> equation A
-----> equation B
Using a graphing tool
The solution of the system of equations is the intersection point both graphs
The intersection point is 
see the attached figure
therefore
the cost of each cookie is 
the cost of each muffin is 
Answer:
x = 1
Y = 1
Step-by-step explanation:
A. 3(2x-3y= - 1)
6x-9y=- 3
B. -2(3x-4y= - 1)
- 6x+8y=2
Add both equations:
(6x-9y= - 3) + (- 6x+8y=2)
-y= - 1
3x - 4(1) = - 1
3x-4= - 1
3x = 4 - 1
= 3/3 = 1
Answer:
Number 1 and 4
Step-by-step explanation:
Hope This Helps :)
The discriminant is the secion inside the double parenthasees [()] below in the quadratic formulat which is
x=
![\frac{-b+ \sqrt{[(b^{2}-4ac)]} }{2a}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-b%2B%20%5Csqrt%7B%5B%28b%5E%7B2%7D-4ac%29%5D%7D%20%7D%7B2a%7D%20)
the determinant determines or tells whether the answer is real or imaginary
if it is negative, then it is imaginary, if positive, then it is real
so basically the discriminmant is

so ax^2+bx+c
a=x^2-2x-15
a=1
b=-2
c=-15
subsitute

=4-4(1)(-15)=4+60=64
the discriminant is (

) or 64