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Reflection of a straight line: ACT Math Practice Question

March 13, 2019 Leave a Comment

 

Try this ACT math practice question on what happens to the y-intercept of a line when it is reflected.

In the standard $xy-$coordinate plane, the line $3x – y = 6$ is reflected across the $x-$axis. What is the $y-$intercept of the resulting line?

  1. $\quad -6$
  2. $\quad -2$
  3. $\quad 2$
  4. $\quad 3$
  5. $\quad 6$

Choice E

2018 December ACT Form B05: Video Explanations

January 27, 2019 3 Comments

 
I have posted video explanations to all of the math questions in the 2018 December ACT (Form AB05) Test.

Area of a scalene triangle: ACT Math Practice Question

November 30, 2018 Leave a Comment

 

Try this ACT math practice question on finding the area of a triangle.


In the figure above, the length of side $AB$ of triangle $ABC$ is $3$, and $\angle A = \angle C= 30^{\circ}$. What is the area of the triangle $ABC$?

  1. $\quad \dfrac{9\sqrt{3}}{8}$
  2. $\quad \dfrac{9}{4}$
  3. $\quad \dfrac{9\sqrt{3}}{4}$
  4. $\quad \dfrac{9}{2}$
  5. $\quad \dfrac{27\sqrt{3}}{8}$

Choice C

Interpreting parabolas: ACT Math Practice Question

October 29, 2018 Leave a Comment

 

Try this ACT math practice question on interpreting terms in a parabolic relationship.

An object thrown directly upward is at a height of $h$ feet after $t$ seconds, where $h = -16t^2 + 12t + 24$. The number $24$ in this equation represents which of the following?

  1. $\quad$ The highest distance the ball is from the ground.
  2. $\quad$ The distance the ball is from the ground when it is thrown upward.
  3. $\quad$ The number of seconds the ball will take to reach the highest point.
  4. $\quad$ The number of seconds the ball will take to reach the ground.
  5. $\quad$ The velocity of the ball when it is thrown.

Choice B

Free computer based ACT test (2013 June ACT Form 71C)

September 2, 2018 4 Comments

 
Beginning September 2018, international administrations of ACT test will be conducted in a computer based test (CBT) format. The test will remain the same as the paper based test conducted in the US, but it will be delivered via the computer. ACT has released a free computer based test for international students. This test is identical to the 2013 June ACT test (Form 71C). Students in the US can also use this for free practice.
 

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