The x-intercepts<span> are where the graph crosses the x-axis, and the y-</span>intercepts<span> are where the graph crosses the y-axis. We find these intercepts when we set one variable to zero. For instance,
</span><span>
y = x^2-10x+25
y-intercept : y = </span>0^2-10(0) +25
<span> y = 25
x-intercept: 0 = </span>x^2-10x+25
0 = (x - 5) (x - 5)
x = 5
X - how long she has lived in New York;
2x - - how long she has lived in California;
x + 2x + 8 = 62 => 3x + 8 = 62 => 3x = 54 => x = 54 / 3 => x = 18 years.
Length = 4x
width = 7x
perimeter is 2length+2width= 352
2(4x)+2(7x) = 352
8x+14x =352
22x = 352
x = 16
then length = 4*16=64
width =7*16=112
2cm per 35 minutes
1cm per 17.5 minutes
17.5 minutes per centimeter
