Answer:
y = (3/2)x + 1
Step-by-step explanation:
Moving from (2,4) to (6,10), we see that y increases by 6 and x by 4. Thus, the slope is m = rise / run = 6/4 = 3/2.
Starting with y = mx + b, subst. 3/2 for m, 4 for y and 2 for x, obtaining
b = 4 - (3/2)(2) = 4 - 3 = 1. Then the desired equation is y = (3/2)x + 1.
Answer:
2
Step-by-step explanation:
Answer:
admission price of each parent = $7.5
admission price of each child = $15
Step-by-step explanation:
x = admission price of each parent
y = admission price of each child
Robinson family:
2x + 4y = 75
Moore family:
2x + 3y = 60
2x + 4y = 75 (1)
2x + 3y = 60 (2)
Subtract (2) from (1)
4y - 3y = 75 - 60
y = 15
Substitute y = 15 into (1)
2x + 4y = 75
2x + 4(15) = 75
2x + 60 = 75
2x = 75 - 60
2x = 15
x = 15/2
x = 7.5
Answer: Choice B. (-2)^9
The rule used here is a^b*a^c = a^(b+c). We add the exponents and keep the base the same.
