Answer:
f(0) = -3
x increases by 1 f(x) increase by 2
f(x) = 2x -3
Step-by-step explanation:
Looking at the graph
f(0) means when x =0 the value of y = ?
when x = 0 y = -3
f(1) means when x = 1 y = ?
When x = 1 y = -1
y increased from -3 to -1 so it increased by 2
f(x) = ax+b where a is the increase and b is the value at x =0
f(x) = 2x -3
Answer:
1. 12 boys,
5. 15 hours
6. 36
Im not so sure on the others, Gl!
Answer:
Step-by-step explanation:
by the definition of negative exponents: for all so long as .
(3,1) y= x -2, <span> when x = 3, y = 3 -2 = 1 ....YES
</span>(1,3) y= x -2 , when x = 1, y = 1 -2 = -1 ....NO
(-1,3) y= x -2 , when x = -1, y = -1 -2 = -3 ....NO
(3,-1) y= x -2 , when x = 3, y = 3 -2 = 1 ....NO
answer is
<span>A-(3,1)</span>