Solve the equation for x:
4x−7=3x+8
x = 15
What is the slope of the line that passes through the points (3, -4) and (7, 2)?
Answer should be in SIMPLEST FORM!
m = 3/2
Solve the system of equations using any method:
x + y = 5
x - y = 1
x = 3, y = 2
or (3, 2)
Simplify: (3x+2) + (5x−7)
Solve the following equation:
x^2 = 16
x = \+- 4
Solve for x:
5(x−2)=3x+4
x = 7
Find the y-intercept of the line y=−2x+5
b = 5
Solve the system of equations using elimination.
8x − 6y = −20
-16x + 7y = 30
(-1, 2)
or x = -1, y = 2
Multiply: (x+3)(x−4)
Hint: FOIL
x^2 - x - 12
SOLVE the following quadratic equation
x^2 - 5x + 6
x = 2, x = 3
Solve for x:
2x+3=7x−12
x = 3
Write the equation of a line with slope 4 and passing through the point (1, 2).
y−2=4(x−1)
or
y=4x−2
Solve the system of equations using substitution:
y=2x−5
3x+y=4
x = 9/5
y= -7/5 or -1 2/5
Factor:
x^2 + 5x + 6
(x + 2)(x + 3)
Find the vertex of the following equation:
y = x^2 - 4x + 3
(2, -1)
Solve for x:
(3x-2)/4 = (2x +1)/3
x = 10
Determine if the lines y=3x+1 and y=3x−4 are parallel, perpendicular, or neither.
Parallel
They have the same slope, but different y-intercepts
Determine if the system has one solution, no solution, or infinitely many solutions:
y=−2x+3
2x+y=3
Infinitely many solutions
Factor
2x^2 - 5x - 3
(2x+1)(x−3)
A rectangle has an area of 117 meters. If the length of the rectangle is x, and the width of the rectangle is 4 meters more, what are the dimensions of the rectangle?
length = 9 meters
width = 13 meters
9 X 13 = 117 square meters
Solve for x:
(2x+5)/(x-1) = 3
x = 8
Find the x-intercept of the line 2x−3y=6.
x = 3
Solve the following system of equations using any method.
x + 7y = 0
2x − 8y = 22
x = 7
y = -1
or (7, -1)
If (x + 3) is one of the factors, what is the other factor in the binomial:
x^2 - 9
(x - 3)
A baseball is thrown from a height of 6 feet with a velocity of 32 feet per second. How long will it take for the ball to hit the ground? Round to the nearest TENTH Use the following equation that models this situation:
h = -16t^2 + 32t + 6
2.2 seconds