Questions and CORRECT Answers
Slope-Intercept Form of a line - CORRECT ANSWER - y=mx+b
Terms of a line - CORRECT ANSWER - slope=m
b=y-intercept
Slope - CORRECT ANSWER - (y₂- y₁) / (x₂- x₁)
Rise over run
the steepness of a line on a graph, equal to its vertical change divided by its horizontal change
Standard form of a line - CORRECT ANSWER - Ax+By=C
x-intercept of a line - CORRECT ANSWER - C/A
y-intercept of a line - CORRECT ANSWER - C/B
Distance formula - CORRECT ANSWER - d = √[( x₂ - x₁)² + (y₂ - y₁)²]
Midpoint formula - CORRECT ANSWER - (x₁+x₂)/2, (y₁+y₂)/2
Parabola - CORRECT ANSWER - The U-shaped graph of a quadratic function
Zero/root of a quadratic - CORRECT ANSWER - X-intercepts of the parabola
Standard form of Quadratic Equation - CORRECT ANSWER - ax² + bx + c = 0, where
, a, b, and c are real numbers and
a ≠ 0.
Standard form of quadratic equation:
Axis of symmetry - CORRECT ANSWER - x=-b/2a
Standard form of quadratic equation: Vertex - CORRECT ANSWER - (-b/2a, f(-b/2a))
Vertex form of quadratic equation - CORRECT ANSWER - y = a(x - h)² + k; vertex is
(h,k), where "h" is always the opposite of what it appears to be in the ( )'s.,
Vertex form of quadratic equation:
Vertex - CORRECT ANSWER - (h,k)
Vertex form of quadratic equation:
Axis of symmetry - CORRECT ANSWER - x=h
Convert standard form to vertex form (quadratic equation) - CORRECT ANSWER -
Complete the square
1. Move c to the left side of equation
2. Divide entire equation by a
3. Take half of the coefficient of x, square that number, and then add the result to both sides of
the equation
4. Convert the right side of the equation to a perfect binomial squared, (x+m)^2
5. Isolate y to put the equation in proper vertex form
Quadratic formula - CORRECT ANSWER - x = -b ± √(b² - 4ac)/2a