Grade 8 Practice Math Challenge Question and Answer Part II

by Dan · Published November 24, 2013 · Updated December 3, 2013

Direction: Write equation of the line in ax+by+c=0 Time: 1 hour

What is the set of values that will make the sentence like 2x+5>7 called?
What is the range of y=2x²-1 on {1<x<4}
What is the range of y=2x²-1?
In which quadrant(s) is the graph of 2x-y=0
Write in symbols: “the product of four and x divided by 3 is at most 10”.
What is the zero of 3x-2y=12?
What is the greatest integer function of f(3.6)?
What is the slope of the line through (2,-3) and (1,-2)
Find the equation of the line with an x-intercept of 2 and passing through (0,-1)
If f(x) = x²+6x+9. What is f(3)?
What is the y-intercept of 3x-4y-12=0?
Find the point of intersection of the lines 2x-y+1=0 and 3x-4y+6=0.
For what value of k will 2x-y-4=0 and 10x-5y+k=0 be dependent?
For what value of K will make 3x+4y+5=0 and 2x-ky-1=0 parallel?
Solve for x and y: 1/x+1/y=1 and 1/x-1/y=3.
Solve for x: 3x-4>17
Write 364,000,000,000 in scientific notation.
What value(s) of x is not permissible in $\displaystyle\frac{x^2-4x-1}{x^2-5x+4}$ ?
Write in standard form: 0.12 x 10⁵.
Simplify:
Solve for x: $\displaystyle\frac{2x-5}{3x-7}= \frac{2x-7}{3x-5}$
Factor completely: 3xy-6x+3y-6
What is the domain of $\displaystyle y=\sqrt{2x-1}$ ?
What is the range of equation in #23?
25. If a_n=2^2n-1– 1 , What is a₄?