-r
Step by step:
7r+(-8)
7r+(-8r)
-r
so john is x and if Maya has the same as john but -3 then
x+x-3
but sam is still missing and she has half of Maya which is 0.5x - 1.5
so the equation is
x+x-3+0.5x-1.5=68
and then you add 3 and 1.5 to 68 which is
2.5x=72.5
and you divide by 2.5 which is 29
John has 29 points
Answer:
(b)
Step-by-step explanation:
Under a reflection in the y-axis
a point (x, y ) → (- x, y ), hence
P(4, 1 ) → P'(- 4, 1 )
Q(2, - 8 ) → Q'(- 2, - 8 )
R(- 8, 1 ) → R'(8, 1 )
Answer:
you multiply im pretty sure
Step-by-step explanation:
Answer:
zeroes: x = -9 and x = -7
Step-by-step explanation:
f(x)=(x+8)^2−1
A "zero" refers to when the y-value on the graph is zero.
0 = (x+8)^2 - 1
1 = (x+8)^2
+ or - 1 = x+8
so break them apart into two equations
x+8 = 1 OR x+8 = -1
x = -7 OR x = -9
You can plug both back in to check that the equation works!