Gina made tables of values to solve a system of equations. First, she found that the x-value of the solution was between 0 and 1, and then she found that
it was between 0.5 and 1. Next, she made this table.
y = 4x-1
y=-3x+ 5
0.5
1
3.5
0.6
1.4
3.2
0.7
1.8
2.9
0.8
2.2
2.6
0.9
2.6
2.3
1.0
3
2.
Which ordered pair is the best approximation of the exact solution?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth