linear equations
What is the equation in slope- intercept form of the line that passes through the points (-4,2) and (12,6)?
y=0.25x+3
Which statement describes the graph of (y=2x2+3)?
Opens upward
What are the domain and range of f(x)=-37
Domain: All real numbers
Range: -37
3x+5>20
x>5
Which line is parallel to y=3x+5 ?
y=3x-7
A line has the equation y+4=-3(x-2). What is the slope-intercept form of the equation?
y=-3x+10
What is the vertex of (y=(x-4)2+2)?
(4,2)
A function is represented by the ordered pairs {(1,4),(2,6),(3,8),(4,10)}
{1,2,3,4}
5(3-x)<-2x+6
x>3
Which equation represents a line perpendicular to y=2x-6 ?
y= -1/2x + 3
y-6=-2(x+3)
y=-2x+12
A parabola has a vertex at (-3,-6) and opens upward. What is its range?
y is greater than or equal to -6
A function is defined by f(x)=3x+2. What is f(5)?
17
Which description represents x is greater than or equal to 4?
The closed circle includes 4, and shading right represents values greater than 4.
A line passes throuh (2,5) and (6,13). Which equation represents a line parallel to this line?
y=2x-4
y+3=-2(x-4)
y=-2x+5
How does the graph of y=-x2 compare with the graph of y=x2?
It is reflected across the x-axis.
A student earns $12 for each hour of work. The student works at most 8 hours. Let (x) represent the number of hours worked.
x={0,1,2,3,4,5,6,7,8}
Solve (4(x-2)<2x+6).
x < 7
Two lines are represented by y=2x=7 and y=2x-5. Which statement is true?
They are parallel
Which equation is written in slope-intercept form and has a slope of 4 and a y-intercept of -3?
y=4x-3
A parabola has a vertex at \((2,-3)\) and opens upward. Which equation could represent it?
y=(x-2)2-3
A parabola opens upward and has a vertex at \((2,-5)\). The vertex is the lowest point on the graph.
What is the range?
y is grater than or equal to -5
(3(2x+1)>4x+13).
(x>5)
Line (p) is represented by (4x+2y=10). Which equation represents a line perpendicular to line (p) that passes through (2,3)?
y = 2x -1