The lines x = 3 and y = −2 are...
A. Parallel
B. Perpendicular
C. Neither parallel nor perpendicular
D. none of these
B. Perpendicular
100
If this is the equation: 4x^2 +6x -7 = 0, what are the values of a, b , and c?
a = 4
b = 6
c = -7
100
What kind of triangle does the Pythagorean Theorum apply to?
Isosceles or right triangle.
100
What kind of triangle has 3 equal sides?
Equilateral triangle.
200
What is the line of best fir?
The line of best fir its the line that goes though a group of data points to capture the general tren of data.
200
Find the x-intercept of the equation: 2x - 4y = 9.
9/2 or 4 1/2
200
What is the shape of the graph in a quadratic equation?
Parabola is the shape of the graph of a quadratic equation.
200
What is the Pythagorean Theorum formula?
a^2 + b^2 = c^2
200
What is the difference between an equation and an expression?
An equation states that two expressions are equal, an expression is just a combination of numbers, variables, and operations. An equation has an equal sign.
300
What does x equal in this equation x=(5*12)/(2*3) ?
x=10
300
What is the value of x in this equation?
5(-3x - 2) - (x - 3) = -4(4x + 5) + 13
x=0
300
What is the standard form of a quadratic equation?
ax^2 + bx + c = 0
300
Who discovered the Pythagorean Theorum?
Pythagoras.
300
What is the equation to find slope?
slope=rise/run
400
What is the slope of the line passing though this pair of points? Do not graph it.
(2, 8) and (6, 20)
Slope=3.
400
What does x equal in this statement |-17*5|-60=x ?
x=25
400
If the "a" is positive, which way will the parabola face? What if it is negative?
If it is positive, it will face upward, if negative it will face downward.
400
If the "a" of a triangle is 10 and the "c" of a triangle is 15, what does "b" equal?
b = 125
400
What is the Golden Rule of Algebra?
Do unto one side of an equation what you do to the other side.
500
Solve for x.
2(3x - 7) + 4 (3 x + 2) = 6 (5 x + 9 ) + 3
x = -21/4
500
Write an equation of the line that passes through the points (-9, 5) and (-3, 3).
y=-1/3x+2
500
WHat is the discriminant?
It is the portion of the quadratic formula under the radical sign.
500
A 13 feet ladder is placed 5 feet away from a wall. The distance from the ground straight up to the top of the wall is 13 feet Will the ladder the top of the wall?