Algebra 1
Which quadrant is in the bottom right corner of a coordinate plane?
quadrant IV
Write the point-slope form of a line passing through (-1, 3) and having a slope of 9.
y-3 = 9(x+1)
If the diameter of a circle is 32, what is its rad6ius?
r = 16
The quadrant you would find (2,4)
What is the 1st quadrant?
What is the formula for finding the area of a triangle?
A = 1/2*b*h
Find the slope of the line containing the points (-3, 4) and (9, -12)
slope = 16/12 = 4/3
What is the standard form of the equation of a circle?
(x - h)2 + (y - k)2 = r2
What is the Pythagorean Theorem?
Interpret the slope -3/8.
The line decreased by 3 vertically for every 8 units that it runs to the right.
What is the name of a linear function written in the form Ax + By = C?
What is Standard Form (General Form)?
What is the equation of a circle with radius of 16 and center at (-2, 7)?
(x+2)2 + (y - 7)2 = 256
The name of the formula that helps you find the average between two points
What is the Midpoint Formula?
x = 6 or (6, 0)
and
y = -15 or (0, -15)
Write the equation of a line passing through (6, 7) and (3, -5) in slope-intercept form.
y = 4x - 17
What is the center and radius of this circle?
(x + 1)2 + (y + 4)2 = 81
Radius = 9
The midpoint of (-2,4) (6,3).
What is (-2,6)?
-2x + 4y = 9
y = 1/2x + 5
Parallel
Write the equation of a line perpendicular to y = 4x -3 and passing through the point (8, 0).
y = -1/4x +2
What is the center and radius of the circle?
x2+y2 -8x + 6y +21 = 0
Center = (4, -3)
Radius = 2
Find the distance between (-8, 1) and (16, -6)
d = 25