The y-intercept is easy to find. Substitute 0 for x. It crosses the y-axis at 20, (0,20).
To find the x- intercepts substitute 0 for y and solve. Since this creates a quadratic equation, it is a little harder.
0 = x2 + 9x + 20, can be solved by several methods, factoring is easiest.
(x+5)(x+4) = 0
x = -5 and x = -4
So it crosses the x-axis at two points, -5 and -4, (-5,0) and (-4,0)
803 + 20 = 823823 - 100 = 723803 plus 20 minus 100 equals 723.
1985 plus 20 is 2005
-15 plus 20 is 5.
20 plus 88 equals 108.
3x+5=20 x=5 since 5x3+5=20
20 = 400
20 plus 20 equals 4020 plus 20 = 40
In this case, the discriminant is less than zero and the graph of this parabola lies above the x-axis. It never crosses.
Yes.
803 + 20 = 823823 - 100 = 723803 plus 20 minus 100 equals 723.
205
20 percent is equivalent to .20 multiply 280 by .20 equals 56 280 plus 56 equals 336
1985 plus 20 is 2005
-15 plus 20 is 5.
Negative 15 plus positive 20 equals 20 minus 15, which equals 5.
3x+5=20 x=5 since 5x3+5=20
20 plus 88 equals 108.