Solving Equations
Systems of Equations
Expressions
Linear Equations
Slope/D&R
100
Solve 4x2+11x - 3 = 0
a. x=-3/4 and x=-1
b. x=1/4 and x=-3
c. x=4 and x=3
d. x=-1/4 and x=3
What is b. x=1/4 and x=-3
100
Solve for x and y. 3x+2y=16
7x+y=19
a. (-2, 5)
b. (-2, -5)
c. (2, -5)
d. (2, 5)
What is d. (2, 5)
100
Evaluate.
f(-2), if f(x)=x2+3
a. -1
b. 1
c. 7
d. -7
What is c. 7
100
Write the equation in slope intercept form.
2y=10x+14.
a. y=10x+12
b. y=10x+7
c. y=5x+14
d. y=5x+7
What is d. y=5x+7
100
Find the slope of the line.
5x+2y=10
a. 5/2
b. -2/5
c. 5
d. -5/2
What is d. -5/2
200
2(2x+3)= -6(x+9)
a. 1.2
b. 6
c. -6
d. 7.5
C
200
Give the solution to the system.
y=2x+1
-2x+y=1
a. No solution
b. (0,1)
c. Infinitely Many Solutions
d.(-1, -2)
What is c. Infinitely Many Solutions
200
Find the sum.
(5x2 - 3x + 4)+(6x - 3x2 - 3)
a. 3x2+2x+1
b. 2x2+3x+1
c. 2x2+5x - 7
d. 3x2+4x5 -7
What is b. 2x2+3x+1
200
Write an equation that has a slope of 5/4 and goes though the point (-4, -3).
a. 5x+4y=-8
b. 5x-4y=8
c. 5x-4y=-8
d. 5x-y=-17
What is c. 5x-4y=-8
200
Find the slope of the line that passes through:
(2, 4) and (6, 12)
a. 1/2
b. -1/2
c. 2
d. -2
What is c. 2
300
What is the solution below?
a. (2, 3)
b. (5, 0)
c. (2, -1)
d. (5, 2.5)
What is c. (2, -1)
300
Jason bought 5 hot dogs and 2 chilli cheese fries for $11. Ellen bought 2 hot dogs and 4 chilli cheese fries for $6. Which system of equations could help us find the price of each item?
A). 7x=11 B). 5x+2y=6 6y=6 2x+4y=11
C). 7x=6 D). 5x+2y=11
6y=11 2x+4y=6
What is D
300
Evaluate.
f(-4), if f(x)=-x2-3x+5
a. -1
b. 1
c. -187
d. 187
What is b. 1
300
Find the y-intercept.
5x+2y=10
a. 2
b. -2
c. -5
d. 5
What is d. 5
300
Find the range of the function 16=2x2+4x
a. x≥-1
b. y≥-18
c. all real numbers
d. y≤-18
What is b. y≥-18
400
Find the solution set to the quadratic equation.
2x2 - 4x -12 = 4
a. {-2}
b. {2, 4}
c. {4}
d. {-2, 4}
What is d. {-2, 4}
400
Jason bought 5 hot dogs and 2 chilli cheese fries for $11. Ellen bought 2 hot dogs and 4 chilli cheese fries for $6. Find the price of each hot dog and each order of chilli fries.
a. $2 hot dog, $0.50 fries
b. $2 hot dog, $2 fries
c. $0.50 hot dog, $2 fries
d. $2.50 hot dog, $1.00 fries
What is a. $2 hot dog, $0.50 fries
400
Factor the expression 2x2-9x-35
a. (x+2.5)(x+7)
b. (3x-3)(5x+7)
c. (5x-2)(x+7)
d. (2x+5)(x-7)
What is d. (2x+5)(x-7)
400
Write an equation perpendicular to y=-4/5x going through the point (-4, -3).
a. 5x+4y=-8
b. 5x-4y=-8
c.5x-4y=8
d.5x-y=-17
What is b. 5x-4y=-8
400
Identify the domain.
a. x <1
b. all real numbers
c. x <0
d. y<0
What is b. all real numbers
500
If 4.1 is a solution to the equation 2x2 - 4x = 2x + 9, find the negative solution.
A). -1.1
B). -3.1
C). -2.1
D). -4.1
What is A). -1.1
500
John caught 24 trout and bass while on a fishing trip. The total weight of his catch was 137 pounds. The average weight of trout was 2.5 pounds and the average weight of bass was 8 pounds.
How many of each fish did he catch?
10 trout, 14 bass
500
What is the solution of the system y=4x-4 and y=4x+8?
What is No solution.
500
Y is 18 when x is 4. If x and y vary directly, find y when x=11.
Answer as a fraction or round to the nearest tenth.
49.5 or 99/2
500
Which is true about the function f(x)=13(1.25)x?
A). It has a vertical asymptote at x=0
B). It has a horizontal asymptote at y=0.
C). It has an vertical asymptote at x=1.25.
D). It has a horizontal asymptote at y=13.
What is B). It has a horizontal asymptote at y=0.