Linear Equations
Solve:
3x − 7 = 11
what is x = 6?
Solve the system by substitution:
y = 2x + 1
y = 5
what is (2 , 5)?
Simplify:
x³ · x⁵
what is X8 ?
Add:
(3x² + 2x) + (x² − 5x)
what is 4x2 - 3x ?
Solve:
x² = 25
what is x = 5, x = -5 ?
Solve:
5(x − 2) = 3x + 4
what is x = 7?
Solve the system:
2x + y = 7
x − y = 2
what is (3 , 1)?
Simplify:
(x²)⁴
what is x8 ?
Multiply:
(x + 3)(x − 2)
what is x2 + x - 5?
Factor and solve:
x² − 5x − 6 = 0
what is x = 6, x = -1?
What is the solution to 4(𝑥 + 5) = 6𝑥 + 12
what is x = 4?
A system has no solution. What does this mean graphically?
what is slope is the same?
what is lines are parallel?
what is lines never intersect?
Write an exponential function that represents 5% growth starting at 200.
what is f(x) = 200(1.05)x ?
Factor:
x² − 9
what is (x + 3)(x - 3)?
Find the vertex of:
f(x) = (x − 3)² + 4
what is (3, 4) ?
Write the equation of a line in slope-intercept form with slope 4 and y-intercept −3.
what is y = 4x - 3 ?
Solve the system:
3x + 2y = 12
3x − y = 3
what is (2, 3)?
Identify whether the function represents growth or decay:
f(x) = 150(0.8)ˣ
what is Decay (because 0.8 is between 0 and 1) ?
Factor:
2x² + 7x + 3
what is (x + 3)(2x + 1)
Use the quadratic formula to solve:
x² + 4x − 5 = 0
What is x = 1, -5 ?
Find the slope of the line passing through (2, 5) and (6, 13).
what is m = 2 ?