Plug it into a graphing calculator and see where the function crosses the x-axis. Since it’s a quadratic it will cross it two times but one of the answers is negative—obviously it wouldn’t take negative second to hit the ground. It should take 9 seconds for the object to hit the ground.
Write an equation in slope intercept form with a positive slope less than one and a y intercept between -10 and 10
Answer:
Sketch the following three graphs:
1) y = (x + 3)²
2) y = -(x + 3)²
3) y = x + 3
First two are parabolas with vertex at (-3,0)
Third one is a line which intersects both the parabolas as (-3,0)
9 books cost 32
Step-by-step explanation:
5 books =20
1 book= 5÷20 = 4
9 books = 4×9 = 32
Since ABCD is a quadrilateral,
We know that sum of the interior angles of any quadrilateral =360
=>A+B+C+D=360
=>2x+90+x +3x=360
=>6x+90=360
=>6x=360-90
=>6x=270
=>x =270/6
=>x =45