2a) 12.9 cm
2b) 8.5 cm
2c) 6.9 cm
3a) 3.5 cm
3b) 2 cm
3c) 6.9 cm
Hope this was helpful :)
Im not that sure but I think its the prism
The slope is 2.
Reason: you find the slope by dividing the difference of the y-coordinates (5 and 9) by the difference of the x coordinates (1 and 3)
9-5=4
3-1=2
4 divided by 2 =2
The y intercept is when x=0
0+5y=-10
y=-2
The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .