solve for x
word prob
exponents
graphing
factoring
100
−4(x − 3) = 2x + 6
1
100
Find the value of two numbers if their sum is 12 and their difference is 4.
4 and 8
100
16-1/2
1/4
100
Write a linear function relationship.
y = (2/5)x - 1
100
x² − 5x − 14 = 0
7 and -2
200
− 2(3x − 1) = − 5x + 8
-6
200
A boat traveled 336 miles downstream and back. The trip downstream took 12 hours. The trip back took 14 hours. What is the speed of the boat in still water? What is the speed of the current?
boat 26 mph, current 2mph
200
(1/4)-1/2
2
200
Write the equation to the line in slope intercept form
y=(-2/3)x+5
200
x² + 10x + 25 = 0
-5
300
−7 < 2x + 3 < 9
-5 < x < 3
300
There are 320 boys and girls in the class. There are 20 more girls than twice the number of boys. How many boys and girls are there? Write and solve a system of equations.
100, 220
300
82/3
4
300
What is the slope of the line produced by the relationship:
y=-3x+6
300
x2+6x-10=30
(x+10)(x-4)=0
x=-10 and 4
400
5 − 3x ≥ −x + 13
x<=-4
400
You have a 20% off coupon and a $6 off coupon. If the final price is the same for either coupon, what is the original price?
$30
400
(−2)⁴ and (1/4)-2 : Are they the same?
yes, both are 16
400
Write an exponential equation that goes through (0,3) and (2, 12)
y=3 * 2x
400
x2 - 11x+19=-5
(x-8)(x-3)=0,
x=3 and 8
500
3(2x − 5) > x + 5 > 2x − 3
4 < x < 8
500
A father is currently 4 times as old as his son. In 5 years, the father will be 3 times as old as his son. Write a system of equations and find both of their current ages.
10 and 40
500
25-x = 125
-3/2
500
Find the equation of a line that passes through (-2,-1.5) and ( 2.5, 7.5)
y=2x+2.5
500
2x² − 6x − 80 = 0
8, -5