Answer:
B
Step-by-step explanation:
Recall that functions are defined only if for each value in the domain produces one and only one value in the range.
If we view the relations in the questions as x-y coordinates, this means that for every x-value, you can only have one y-value
Lets evaluate the options:
A) we can see that for x = -3, this gives 2 possible values for y i.e (-3,4) and (-3,8) (hence this is not a function)
C) we can see that for x = 3, this gives 2 possible values for y i.e (3,-8) and (3,8) (hence this is not a function)
D) we can see that for x = -3, this gives 2 possible values for y i.e (-3,4) and (-3,8) (hence this is not a function)
the only choice where this doesn't occur is choice B
The rhombus always has perpendicular diagonals.
<h2>
<u>Answer:</u></h2>
Susan = x
Gina = 3x
Sum of their ages = 12
Susan's age = ?
We can see that,
Susan is <u>3</u><u> </u><u>years </u>old.
The answer will be
f(3)=3(3)+7
=9+7
=16
Answer:
y = -7x + 0
Step-by-step explanation:
slope-intercept form is y = mx + b where m is the slope and b is the y-intercept
use any of the points on the graph. (0,0) (-1,7). find the slope
slope = y2 - y1/ x2 - x1
slope 7 - 0/ -1-0 = 7/-1 = -7. our slope is -7
so now we already have y = -7x + b. but we still have to find the y-intercept.
-7/1 = y - 7/x - (-1) cross multiply.
y - 7 = -7x - 7
y + 7x = -7 + 7
y + 7x = 0
y = -7x + 0
