(a) the slope is 2 and y-intercept is 15
slope is the factor in front of x
y-intercept is obtained by setting x=0: y=2*0+15 = 15
(b) the rate of change (aka slope) is 2 baskets per hour. This means that every additional hour of picking there are 2 more baskets of berries than before. The initial amount is 15. This means that there were 15 baskets of berried picked before starting counting the hours.
2x^2+20x = -38
2x^2 + 20x + 38 = 0
Divide both sides by 2.
x^2 + 10x + 19 = 0
The quadratic formula works very well here.
Let a = 1, b = 10 and c = 19
x = [-b +- sqrt{b^2 - 4ac}]/(2a)
Plug those values into the formula to find two answers for x.
One is negative and the other positive.
Good luck.
Answer:
I dont know the answers but here is an example( look at screenshots)
Step-by-step explanation:
If you multiply -8 and -9 it's 72 because If you multiply two negatives it turns into a positive number/answer and if you add -8 and -9 it's -17.
-8 + -9 = -17
and
-8 * -9 = 72
Answer:
well how many times does nvm i think it -1 but om not sure
Step-by-step explanation:
im sorry