Functions
Is the following a function?
x=4
Not a function
What is the slope of the line y=-2?
Zero
Write the equation of a line with slope = -1 and y-intercept = 0.
y=-x
Solve: -10b+5=7b+5
b=0
What is the value of x2+5x+2 when x=-2?
-4
What is the y-intercept of y=3x-7. In ordered pair form.
(0,-7)
What's the slope of the line x=4?
undefined
Write the equation of a line with slope = 2 and point (4,1).
y=2x-7
Solve: -3(x+2)-3x<2x+18
x>-3
What is the value of |x-y|+3 when x=-8 and y=-2?
9
What are the zeroes of x2+5x+6? In ordered pair form.
(-2,0) and (-3,0)
What's the slope of the line passing through (3,9) (5,4)
slope: -5/2
Write the equation of a line with points (-3,7) and (1,-1)
y=4x-5
What is the solution to the following system of equations:
y=x+5
x-y=2
No solutions
if f(x)=4x-6, what is f(-5)?
f(-5)=-26
What is the domain of y=-3x+5?
All Real Numbers
Find the slope: y = 3x + 5
3
Write the equation of a line parallel to y=2x+4 and passes through the point (-4,-1).
y=2x+7
Which point is in the solution to the system of inequalities?
2x-5y>25
3x+9y<9
A. (5,-5)
B. (3,0)
C. (0,1)
D. (15,-1)
A. (5,-5)
If f(x)=x2-6, what is f(-2)?
f(-2)=-2
What is the range of x2+4x+3?
y>=-1
What is the slope of the following equation:
2x + 2y = 8
slope = -1
Write the equation of a line perpendicular to y=x-2 and passes through the point (-3,-2).
y=-x-5
Solve for h:
V=1/3Bh
h=(3V)/B
If f(x)=5x3-x, what if f(-1)
f(-1)=-4