Question 1

Which of the following is the correct value of $$\sin\left(\dfrac{\pi}{6}\right)$$?

Accepted Answer

$$\dfrac{1}{2}$$

Question 2

Simplify the expression $$\$$left(2x^3$$y^2$$\$$right)^2$.

Accepted Answer

$$4x^6y^4$

Question 3

Evaluate the numeric expression: $$3^2 + 4$$ 	imes 2 - 5$$.

Accepted Answer

$$13$$

Question 4

Which of the following points is a solution to the equation $$y = 2x - 3$$?

Accepted Answer

$$(2, 1)$$

Question 5

Find the distance between the points $$(1, 2)$$ and $$(4, 6)$$ using the distance formula.

Accepted Answer

$$5$$

Question 6

What is the midpoint of the segment joining $$(2, 5)$$ and $$(6, 9)$$?

Accepted Answer

$$(4, 7)$$

Question 7

Which of the following equations represents a circle with center $$(3, -2)$$ and radius $$5$$?

Accepted Answer

$$(x - 3)^2$ + (y + 2)^2$ = 25$$

Question 8

Given the equation $$x^2$$ + $$y^2 = 16$, what are the center and radius of the circle?

Accepted Answer

Center: $$(0, 0)$$, Radius: $$4$$

Question 9

Which of the following is NOT a function?

Accepted Answer

A relation where $$(1, 2)$$ and $$(1, 3)$$ are both present

Question 10

Evaluate $$f(2)$$ for $$f(x) = 3x^2$ - x + 4.$$

Accepted Answer

$$14$$

Question 11

Find the domain of the function $$f(x) = \dfrac{1}{x-5}.$$

Accepted Answer

$$x 
eq 5$$

Question 12

Which of the following graphs represents a function with domain $$(-\infty, \infty)$$ and range $$[0, \infty)$$?

Accepted Answer

A parabola opening upwards with vertex at $$(0, 0)$$

Question 13

Find the equation of the line passing through $$(1, 2)$$ and $$(3, 6).$$

Accepted Answer

$$y = 2x$$

Question 14

What is the equation of the line with slope $$-3$$ and $$y-$$intercept $$5$$?

Accepted Answer

$$y = -3x + 5$$

Question 15

Find the equation of the line parallel to $$y = 4x - 7$$ and passing through $$(2, 3).$$

Accepted Answer

$$y = 4x - 5$$

Question 16

Find the equation of the line perpendicular to $$y = \dfrac{1}{2}x + 1$$ and passing through $$(0, -3).$$

Accepted Answer

$$y = -2x - 3$$

Question 17

What is the equation of the vertical line passing through $$(4, -2)$$?

Accepted Answer

$$x = 4$$

Question 18

What is the equation of the horizontal line passing through $$(5, 7)$$?

Accepted Answer

$$y = 7$$

Question 19

Find the $$x-$$intercept of the line $$2x - 3y = 6.$$

Accepted Answer

$$(3, 0)$$

Question 20

Simplify the expression $$\dfrac{a^5$b^3$$}{$$a^2b$$}$.

Accepted Answer

$$a^3b^2$

Precalculus Study Guide: Key Concepts and Problem-Solving Strategies

스터디 가이드 - 연습 문제