STAAR Review Day 4 Practice

Based on the sequence, $a_3=0,\ a_4=6,\ a_5=12,\ a_6=18,$  and  $a_7=24,$  which equation can be used to find the  $n^{th\ }$  term in the sequence,  $a_n?$  

•  $a_n=-6n+18$  

•  $a_n=-18n+6$  

•  $a_n=6n-18$  

•  $a_n=18n-6$  

Which equation is equivalent to  $y+7=-\frac{3}{8}\left(x-16\right)?$  

•  $y=-\frac{3}{8}x+13$  

•  $y=-\frac{3}{8}x-1$  

•  $y=-\frac{3}{8}x-13$  

•  $y=-\frac{3}{8}x+1$  

Given $f\left(x\right)=\frac{1}{3}\left(4-x\right)^2,$  what is the value of  $f\left(16\right)?$  

Which graph does not show y as a function of x?

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Which equation is equivalent to  $5x-12y=24?$  

•  $y=\frac{5}{12}x-2$  

•  $y=-\frac{5}{12}x+2$  

•  $y=\frac{12}{5}x-\frac{1}{2}$  

•  $y=-\frac{12}{5}x+\frac{1}{2}$  

What is the solution to  $1.25\left(4x-10\right)=7.5?$  

What is the negative solution to $4x^2+19x=5?$