In analytic geometry, using the common convention that the horizontal axis represents a variable x and the vertical axis represents a variable y, a y-intercept or vertical intercept is a point where the graph of a function or relation intersects the y-axis of the coordinate system. As such, these points satisfy x = 0.
A coordinate grid has two perpendicular lines, or axes, labeled like number lines. The horizontal axis is called the x-axis. The vertical axis is called the y-axis. The point where the x-axis and y-axis intersect is called the origin. The numbers on a coordinate grid are used to locate points.
<h2><u>COMBINED OPERATIONS</u></h2><h3>Exercise</h3>
First, let's solve the subtraction (in parentheses):
Now, let's solve the multiplication. Remember: in multiplication, two negative numbers will give a positive number:
Finally, let's solve the division:
<h3><u>Answer</u>: 16</h3>
Set up proportion 170/180=x/1 than cross multiply 170x=180 divide both sides by 170 answer 0.944 so 94% remains
1 x 72<span>, </span>2 x 36<span>, </span>3 x 24,4 x 18<span>, </span>6 x 12<span>, or </span><span>8 x 9</span>
