Answer:
y = -1/2x + b meaning f(x) = -1/2x + b
Step-by-step explanation:
Use two points on the graph that you can find the value of or use Slope = raise/run
let use points (2,0) and (0, 1)
slope = (change in the y-value)/(change in the x-value.
slope = (1 - 0)/(0 - 2)
slope = 1/-2 or -1/2
Or starting at point (2, 0) the run(x movement) = -2 and the raise is 1.
slope = raise/run
slope = 1/-2 or -1/2
Using one point (2,0) and the slope of -1/2, substitute into the slope intersect form, y = mx + b, and solve for "b" .
y= mx + b
0 = -1/2(2) + b
0 = -1 + b
1 = b
Now write your equation: y = mx +b where m = -1/2 and b = 1
y = -1/2x +b
Answer:
112.25
Step-by-step explanation:
The total of IQ points for all people in the group was ...
84 × 113 = 9492
Of those points, 36 × 114 = 4104 came from the males. Then the female IQ points were ...
9492 -4104 = 5388
and the female average was ...
5388/(84-36) = 5388/48 = 112.25
The average IQ of the females in this group was 112.25.
Answer:
im not 100% sure but wouldnt #15 be 9squared-81=0
Step-by-step explanation:
9 squared would turn to 81 because 9 time 9 is 81 and 81- 81 is 0
Answer:
A set of natural numbers less than 10
is
<u>N{1,2,3,4,5,6,7,8,9}</u>
IF:
|1/2.x -2/3.y = 7 and
|a.x - 8.y = -1
have no solution, that means these 2 linear equations ARE PARALLEL (since they can never meet). Reminder: 2 equations are parallel if they have the same coefficient , so let write each of the equation in the normal form:
a)1/2.x -2/3.y = 7→ -2/3.y = -1/2.x + 7 → y = 3/4.x - 21/2
b) a.x - 8.y = -1 → - 8.y = -a.x - 1 → y= a/8.x + 1
a) and b) are // if (3/4) = (a/8), [the 2 coefficient OR the 2 slopes)
a/8 = 3/4 → a = 24/4 and a = 6 (Answer D)
