PSAT Math Multiple-Choice Practice Question 591
Question: 591
The graph of the function below is given by which equation
Correct Answer: D
Explanation:
(D) Since the parabola has zeros at 3 and -2, it can be written in this way:
f(x) = (x - 3)(x + 2)
Use FOIL:
f(x) = x2 - x - 6
Alternatively, you can set x = 0. Then see which of the choices results in a y-value of -6 since this is the y-intercept of the parabola based on the graph. Only choice (D) works:
f(x) = x2 - x - 6
f(0) = 02 - 0 - 6 = -6
f(0) = -6
More Tests
- PSAT Math Multiple-Choice Test 1
- PSAT Math Multiple-Choice Test 2
- PSAT Math Multiple-Choice Test 3
- PSAT Math Multiple-Choice Test 4
- PSAT Math Multiple-Choice Test 5
- PSAT Math Multiple-Choice Test 6
- PSAT Math Multiple-Choice Test 7
- PSAT Math Multiple-Choice Test 8
- PSAT Math Multiple-Choice Test 9
- PSAT Math Multiple-Choice Test 10
- PSAT Math Multiple-Choice Test 11
- PSAT Math Multiple-Choice Test 12
- PSAT Math Multiple-Choice Test 13
- PSAT Math Multiple-Choice Test 14
- PSAT Math Multiple-Choice Test 15
- PSAT Math Multiple-Choice Test 16
- PSAT Math Multiple-Choice Test 17
- PSAT Math Multiple-Choice Test 18
- PSAT Math Multiple-Choice Test 19
- PSAT Math Multiple-Choice Test 20
- PSAT Math Multiple-Choice Test 21
- PSAT Math Multiple-Choice Test 22
- PSAT Math Multiple-Choice Test 23
- PSAT Math Multiple-Choice Test 24
- PSAT Math Multiple-Choice Test 25