Solving Word Problems Involving Quadratic Equations

Quiz
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Anthony Clark
Used 2+ times
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Translate: The square of a number is one hundred fifty more than five times a number.
x2 = 5x + 150
x2 = 5x + 50
2x = 5x + 150
x2 = 5x + 15
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Translate " four less than the square of a number is negative eight" into mathematical equation.
x2 - 4 = -8
x2 + 4 = -8
2x - 4 = -8
2x + 4 = -8
Tags
CCSS.8.EE.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ate Marwin and Ate Daisy are both working on the school canteen. Together they can finish cleaning the canteen in 4 hours. It takes ate Marwin working alone in 6 hours longer than it takes Ate Daisy working alone. Determine the quadratic equation formed on the given problem.
x2 + 6x + 12 = 0
x2 + 2x + 24 = 0
x2 - 6x + 12 = 0
x2 – 2x – 24 = 0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The sum of a number and its square is 72. Find the number(s).
8 or 9
8 or -9
-8 or 9
-8 or -9
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The sum of the square of two consecutive positive integers is 85. Write a quadratic equation.
x2 + x - 1 = 85
x2 + x + 1 = 85
x2 + x - 42 = 0
x2 + x + 42 = 0
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
One number is 3 more than another. The sum of their squares is 149. Find the numbers.
4 and 7; -4 and -7
5 and 8; -5 and -8
6 and 9; -6 and -9
7 and 10, -7 and -10
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The sum of a number and its square is 72. Find the number.
8 or 9
8 or -9
-8 or 9
-8 or -9
Tags
CCSS.8.EE.A.2
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