Two-Step Equations
Solve: 3x + 8 = 20
x =4
Find the slope between (1,2) and (5,10)
|-12| =
12
f(x) = x + 6
find f(4)
f(4)= 4 + 6
f(4) = 10
Which of the following equations is quadratic?
a) 2x + 1 = y
b) 5x + 6y = 22
c) x4 + 3 = 45
d) x2 + 3x - 2 = 0
d) x2 + 3x - 2 = 0
5x - 7 = 18
x = 5
Find the slope between the points (2, 3) and (6, 11).
m = 2
|9|
9
f(x) = 4x - 3
find f(2)
f(2)= 4(2) - 3
f(2)= 8 - 3
f(2) = 5
Identify the a, b, and c values in the following equation:
y = 2x2 + 4x + 7
a= 2
b= 4
c= 7
x/4 + 6 = 11
x = 20
Identify the slope and y-intercept:
y = -2x + 6
slope= -2
y-intercept= 6
100 =
1
Is (3,6) a solution to y > x + 2?
Yes
Factor the following equation:
x2 + 6x + 8
(x + 2)(x + 4)
7x - 9 = 40
x = 7
Write an equation with a slope of 3 and a y-intercept of -1.
y = 3x - 1
rewrite with positive exponents:
y-2
1 / y2
Is (2, 1) a solution to y < x - 1?
No
Factor:
x2 + 11x + 24
(x + 3)(x + 8)
2x + 15 = 3
x = -6
What is the formula for finding the slope of a line that passes through 2 points?
y2 - y1 / x2 - x1
Simplify: 5-1
1 / 5
What type of line do you use for < or > inequalities?
A dashed line
Factor:
2x2 + 5x + 2
(2x + 1)(x + 2)