Take this Exam: PSAT Algebra — setting it up and reading it back | Zestly

Question 1

Which expression is equivalent to $\frac{x^2 - 9}{x + 3}$?

Accepted Answer

$x - 3$

Answer

$x + 3$

Answer

$x^2 - 6$

Answer

$x - 6$

Question 2

A quadratic function is given by $f(x) = (x - 4)(x + 2)$. Which feature of the graph is most easily identified from this form?

Accepted Answer

The x-intercepts

Answer

The y-intercept

Answer

The vertex

Answer

The axis of symmetry

Question 3

A population of bacteria doubles every hour. If there are 100 bacteria initially, which function models the population $P$ after $h$ hours?

Accepted Answer

$P = 100(2^h)$

Answer

$P = 100 + 2h$

Answer

$P = 100h^2$

Answer

$P = 200h$

Question 4

What are the solutions to the equation $x^2 - 5x + 6 = 0$?

Answer

$x = 5, x = -6$

Answer

$x = 1, x = 6$

Answer

$x = 2, x = 3$

Answer

$x = -2, x = -3$

Question 5

A phone plan costs 15 dollars a month plus 0.04 dollars for each minute of calls. One month's bill comes to 27 dollars. How many minutes of calls were made that month?

Answer

0.48

Answer

300

Answer

675

Answer

1050