Graphs aren't mandatory, but they may help visual learners see why an equation works a certain way. Also, they are a visual tool to quickly find a solution to a problem. Furthermore, they help with presentations to quickly convey an idea to someone (who may not be well versed in mathematics).
For example, if you save $10 a week and already have $50 in a savings account, then the equation you graph is y = 10x+50. Here x is the number of weeks and y is the amount saved.
Now let's say you want to find out how many weeks it would take to have $90 total. You could use guess and check to get the answer. Or you could use algebra and the substitution property. The visual way would be to graph y = 10x+50 and y = 90 together to note how the two lines intersect at (4, 90) to indicate it will take x = 4 weeks to have y = 90 total.
The answer is X=6/7 hope this helps you out
Answer:
52
Step-by-step explanation:
Let "a" represent the number of adult tickets sold. Then revenue was ...
9.40a +5.40(151 -a) = $1023.40
4.00a + 815.40 = 1023.40
a = (1023.40 -815.40)/4.00 = 208/4 . . . . . subtract 815.40, divide by 4
a = 52
52 adult tickets were sold that day.
Answer:
13 units
Step-by-step explanation:
Rectangle ABCD has coordinates A(-1,-6), B(-1,7), C(1,7), D(1,-6)
We want to find the length of AB.
We use the absolute value method to find the length of AB.
Since the first coordinates are the same for A(-1,-6) and B(-1,7).
The distance is given by;
The length of AB is 13 units.
Answer:
In geometry, an angle of a polygon is formed by two sides of the polygon that share an endpoint. For a simple (non-self-intersecting) polygon, regardless of whether it is convex or non-convex, this angle is called an interior angle (or internal angle) if a point within the angle is in the interior of the polygon. A polygon has exactly one internal angle per vertex.
If every internal angle of a simple polygon is less than 180°, the polygon is called convex.
In contrast, an exterior angle (or external angle) is an angle formed by one side of a simple polygon and a line extended from an adjacent side.
Step-by-step explanation: