Answer: Choice B) { f(x)| –∞ < f(x) ≤ 4}
Note that { f(x)| –∞ < f(x) ≤ 4} is the same as { f(x)| f(x) ≤ 4} and that's saying "the output y is at most 4". So the largest y can get is 4. This is the upper limit or ceiling so to speak. The value of y can be any number less than 4.
The range is basically the set of all possible y outputs of a function. It is the set of all y coordinates of the points on the function curve. The highest we can go is y = 4. There is no limit on how low the points can go, so it goes off to negative infinity.
Answer:
n = 70
Step-by-step explanation:
n/10 + 8 = 15
n + 80 = 150
n = 150 - 80
n = 70
The answer is A.
Look at the x term/value for domain and y for range.
set of x is domain while set of y is range.
Answer:
x=20
Step-by-step explanation:
Well we know the right angle is 90 so...
And we also know that all the angle of a triangle add up to 180°.
Knowing this you can subtract 40° and 90°, this gives you 50°...
Then you can substitute 20° for x and then it will be 2(20°)+10°
Simplify and get 40°+10°
This equals 50° degrees
You then add that all up and you get 180°, this mean the answer is correct!
Hope this helps!
All the love, Ya boi Fraser :)
Slope-intercept form is <em>y = mx + b</em> where m is the slope and b is the y-intercept. (the value of y when x = 0)
To find the slope, use the slope formula,
, where (x¹, y¹) and (x², y²) are your two points.
For (-2, 6) and (2, 14):
As a fraction, we would write the slope 2/1, but dividing by 1 is redundant when writing the actual equation.
Since slope is rise over run, we can interpret this slope as <em>"when y changes by 2, x changes by 1 (and vice versa)"</em>
Let's take one of our points, how about (-2, 6), and find our y-intercept from this.
We want to add 2 to x. According to our slope, this means adding 4 to y.
Our y-intercept is at (0, 10), with the value we put into our equation b = 10.
Final equation:
y = 2x + 10