F(-10)=-2, f(-8)=5, and f is continuous. All these mean that f(x) is 0 for x in between -10 and -8.
That is, f at -10 is negative, then at -8 is positive. So the graph of f "cuts" the x-axis for an x value in (-10, -8).
Since there is only one value such that f(x)=0, x can only be -9.
Answer: -9
I’m not sure if this may be to hard of a method for you depending on which grade you are in but I’ll try and explain the best I can.
Use the formula:
Y2 - Y1
————
X2 - X1
Take two points from the line: (10,30) and (40,50)
Only because they have exact values
(10,30) and (40,50)
The 10 is X1 because it’s the x of the first coordinate. 30 is Y1 for the same reason
The 40 is X2 because it’s the X of the second coordinate. 50 is the Y2 for the same reason
Substitute this into the formula
50-30
———-
40-10
= 20
—-
30
Which simplifies to 2
—
3
So the slope of the line is 2
—
3
I hope this helps.
The value of the (RIC) will increase from 4 to 5.75,that is,44%
Answer:
Below
Step-by-step explanation:
● 3 + (9-5)^2 - (10-3)
● 3 + (-4)^2 - 10 + 3
● 3 + 16 - 10 + 3
● 19 - 10 + 3
● 9 + 3
● 12
Folding a regular hexagon along a line that bisects two vertex angles (these angles will be opposite each other) will display reflectional symmetry.
Another option is to fold it along a line that connects the midpoints of opposite sides.
Any shape that can be separated into two matching segments by a single line has reflectional symmetry.
