Answer:
y = 3x -5
Step-by-step explanation:
y = mx + b
for (5, 10)
b = y - mx = 10 - 3 x 5 = - 5
y = 3x -5
for (2,1)
check: 1 = 2 x 3 -5
Answer:
10.31 pounds
Step-by-step explanation:
First, we multiply 1.3 x 2 because he is gaining 1.3 for the next TWO weeks.
1.3 x 2 = 2.6
Now, add 7.71 + 2.6 because that is the weight he started with.
7.71 + 2.6 = 10.31
Her brother will weight 10.31 pounds if he is 7.71 lbs and continues to gain 1.3 pounds each week for two weeks.
Answer:
3x^2
Step-by-step explanation:
The missing term is the product of x and 3x.
x * 3x = 3x^2
Answer: 3x^2
