Slope
the slope of the line y = -4x + 8
What is -4?
write the slope-intercept form of the equation of a line given a slope of 6/5 and a y-intercept of -7.
What is y = (6/5)x - 7
the standard form of a linear equation
What is Ax + By = C
determine if the relation is a function
{(1,-2),(-2,0),(-1,2),(1,3)}
What is not a function?
the equation of the linear function that represents direct variation
What is y = kx?
the slope of the line between (9,4) and (3,8)
What is -2/3?
write 3x - y = 2 in slope-intercept form
What is y = 3x - 2?
find the x-intercept and y-intercept of the equation 3x - 5y = 30
What is x = 10 and y = -6
the test used to determine if a graph represents a function
What is the vertical line test?
determine if y varies directly with x
x 2 3 5
y 14 21 35
What is yes?
the slope of the line parallel to y = -6x -9
What is -6?
write the slope-intercept form of the equation of a line that goes through (1, -4) and is parallel to y = 4x + 5.
What is y = 4x - 8?
write the standard form of the equation of the line with a slope of -4 and a y-intercept of 8
What is 4x + y = 8?
find the domain of the relation
{(2,9),(8,-7),(-4,6),(3,3),(5,-1)}
What is {2,8,-4,3,5}
determine whether y varies directly with x
y - 6x = 0
What is yes?
the slope of the line perpendicular to y = (2/5)x -8
What is -5/2?
write the slope-intercept form of the equation of the line that goes through (-4, 5) and is perpendicular to y = -2x - 4.
What is y = (1/2)x + 7?
write the standard form of the equation of the line
y = (4/7)x - 4
What is 4x - 7y = 28?
f(x) = 2x + 3, find f(-5)
What is -7?
y varies directly with x, if y = -20 when x = 2,
find y when x = 14
What is -140?
the slope of the line 5x + 2y = 10
What is -5/2?
write the slope-intercept form of the equation of the line through (2,7) and (4,-1).
What is y = -4x + 15?
write the standard form of the equation of the line through (-6,5) and perpendicular to the line
2x + y = 7
What is x - 2y = -16
f(x) = (-3/5)x + 17, find f(150)
What is -73?
y varies directly with x; if y = (4/5) when x = (2/5), find y when x = -3
What is -6?