Formulas
the slope intercept form of a linear equation
what is y = mx + b
f(x) = 3x + 5
f(-2)=
what is -1
Parallel Lines never intersect and have the same
what is SLOPE
the solution to a system of equations on a graph
what is the point of intersection
a vertical and horizontal line intersect at (10, -13)
the equation of the horizontal line is
what is y = -13
standard form of a linear equation
what is Ax + By = C
f(x)=x2+2x
f(-3)=
what is 9-6 = 3
Perpendicular lines intersect to form right angles and have slopes
what are opposite sign reciprocals
an infinite solution system describes
what is the same line
true or false
this system has No Solution
3x-9y = 9
4x-12y=36
TRUE
slope formula
what is m =(y2 - y1) / (x2-x1)
f(0) = 5 is the ordered pair
what is (0, 5)
true or false
the equations describe the same line
4x+5y = 20
y = 5/4 X + 4
FALSE
4x + 5y = 20
y = -4/5 X + 4
y = 2x - 8
13X + 2y = 18
what is (2, -4)
True False
the system has NO solution14x + 7y = -7
y=-2x-1
FALSE - it has Infinite Solutions
point slope form of a linear equation
what is y - y1=m(x - x1)
if f(3)=10 then f(3) + 5 is
what is 10 + 5 = 15
true or false
y - 3 = 2 (x + 5)
contains the point (5, -3) and has slope m = 2
FALSE
Point (-5, 3)
m = 2
solve the system
3x - 2y = 10
x = 2what is (2, -2)
f(5) = 18 is the ordered pair
what is (5, 18)
when the denominator is zero in the slope formula
what is undefined slope
if f(x) = 4x- 1 then f(2x) is
4(2x) - 1 = 8x - 1
true or false
y = 2/3 X + 5 is the same as
y - 5 = 2/3 (X + 5)
FALSE
y - 5 = 2/3 (X + 0) is the same as
y = 2/3 X + 5
the equation of the vertical line is
what is x = 5
the line y = 8 and the line x = 8 intersect at
what is the point (8, 8)