Answer:
[-6, 8]
Step-by-step explanation:
Domain: set of all possible <u>input</u> values (x-values)
Range: set of all possible <u>output</u> values (y-values)
The <u>closed circles</u> on the <u>endpoints</u> of the curve mean that those points are <u>included</u> in the interval.
From inspection of the graph, the smallest y-value is -6 and greatest y-value is 8.
To express this in <u>interval notation</u> write the beginning and ending numbers of the interval inside <u>square brackets</u> as the end values are <u>included</u>.
(If the circles were open, and therefore the end values should not be included, use curved brackets).
Therefore the range of the given graph is: [-6, 8]
Answer:
60 boys
Step-by-step explanation:
boys : girls = 3 : 5
Total number of people = 160
Let y = common factor:
Therefore, 3y + 5y = 160
⇒ 8y = 160
⇒ y = 160 ÷ 8 = 20
Boys = 3y = 3 x 20 = 60
Girls = 5y = 5 x 20 = 100
So there are 60 boys and 100 girls
This function is increasing, so the slope should be positive.
slope=rise/run=2/3
<span>A) y = (2/3) x − 1 </span>
Answer:
2 1/2 or 2.5
Step-by-step explanation:
Givens
c = 2 1/6
d = 1/2 * 2/3
Solution
c = 2 1/6 = (2*6 + 1)/6 = 13/6
d = 1/2 * 2/3 = 2/6
c+ 1/2d = 13/6 + 2/6 = 15/6 = 2 3/6 = 2 1/2 or 2.5