Quadratics
Solve
2x^2-2x-24=0
x=4
x2+2x-3=0
x=1
x=-3
The formula
3(x+1)=5+x
x=1
-2x-4y=-16
6x-2y=20
y=3x-10
what is the quadratic formula in standard form
ax2 + bx + c = 0
-2x2+6x=0
x=0
x=3
How many solutions can systems of linear equations have?
Zero solutions, 1 solution or infinite solutions
9n-6n=5n+18
n=6
y=3x
y=5x-8
x=4
y=12
Solve
4x^2=4x-1
x=1/2
x2+3x+4=14
x=-5
x=2
How can you tell how many solutions an equation has by graphing?
If the graphs of the equations intersect, then there is one solution that is true for both equations
2x(x+2)-5=3(x+1)
x=-4
y=7-x
x=3
y=4
How many solutions can an quadratic equation?
0,1,2
(x+7)(x-2)=0
x=-7
x=2
what is the M of y=mx+b
M= The Slope
3(y+2)+y=-14
y=-5
What are examples of systems of inequality?
y ≤ (1/2) x + 1, y ≥ 2x – 2, y ≥ -(1/2) x – 3.
Quadratic formal not in standard form.
(-b±√(b²-4ac))/(2a) .
x2+5a+6=0
x=-3
x=-2
What is the B of Y=mx+b
b=y-intercept
5+14a=9a-5
a=-2
First step to finding the system of equations?
Put both equations in standard form.