1st one: zero
2nd one: one
The y-intercept is the starting point. Since the temperature started at -7, we know that b in y = mx + b has to be -7. m is the slope which in our case is 3 because the temperature is changing every hour. So, because the temperature is going up, it's +3. Our equation should be y = 3x - 7.
Answer:
x = -8, x = 4
Step-by-step explanation:
x² + 4x - 12 = 0
(x + 8) (x - 4) = 0
x + 8 = 0, x = -8
x - 4 = 0, x = 4
Well I can help you with number 4 for your quiz D) -2 4/9 is rational because exponents and pie signs are known to be irrational but fraction can be simplify.
Answer: The answer is C
The vector (-7,-5) as a sum of unit vectors is -7i-5j
