Which is a table of values for y = x - 6? I don't know how to solve functions
2 answers:
I Have made a table for you. You start by making a table, <span>To graph with a table you simply pick numbers for </span>x<span> and solve for </span>y<span> by plugging </span>x<span> into the equation. This gives you the points to graph.</span>
Hi,
A table of values is a set of numbers that could be equal to x and a set of values that could be equal to y. This is pre-algebra, I'm guessing, so you could solve it this way:
y = x - 6
So what would happen if x was 3? It would be y = 3 - 6, which would be -3.
What would happen if y was 4? Y = 4 - 6, which is -2.
If y was 5? 6? 7?
You take all these "what if's" and put them in a chart, like below. That's called a "table of values" :)
A table of values is a set of numbers that could be equal to x and a set of values that could be equal to y. This is pre-algebra, I'm guessing, so you could solve it this way:
y = x - 6
So what would happen if x was 3? It would be y = 3 - 6, which would be -3.
What would happen if y was 4? Y = 4 - 6, which is -2.
If y was 5? 6? 7?
You take all these "what if's" and put them in a chart, like below. That's called a "table of values" :)
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Observe attached picture.
On picture we have:
A = height of flagpole = x ft
B = length of flagpole's shadow = 24 ft
C = height of sign = 6 ft
D = length of sign's shadow = 3 ft
When we draw a picture representing this problem we can also add another line marked in red. This way we can see that we have two right-angle triangles. We can see that both have same angle marked with α.
We can apply trigonometry rules to find height of flagpole.
From small triangle containing sign we can find tangens function:
Similarly we can do for large triangle containing flagpole:
We see that these two equations have same left sides. This means that their right sides must also be same:
We can solve for A:
Height of flagpole is 48 feet.
On picture we have:
A = height of flagpole = x ft
B = length of flagpole's shadow = 24 ft
C = height of sign = 6 ft
D = length of sign's shadow = 3 ft
When we draw a picture representing this problem we can also add another line marked in red. This way we can see that we have two right-angle triangles. We can see that both have same angle marked with α.
We can apply trigonometry rules to find height of flagpole.
From small triangle containing sign we can find tangens function:
Similarly we can do for large triangle containing flagpole:
We see that these two equations have same left sides. This means that their right sides must also be same:
We can solve for A:
Height of flagpole is 48 feet.