Answer:
the quantities do NOT vary directly
Step-by-step explanation:
A graph showing a proportional relationship is a straight line through the origin. This graph goes through (0, 100), so does NOT show a proportional relationship. y does NOT vary directly with x.
Answer:
Step-by-step explanation:
4x 7y 5x 11y
letters are variables
Answer:
or
Step-by-step explanation:
Subtract 29 from both sides.
There are no two integers whose sum is -4 and whose product is -38, so the trinomial is not factorable. We can use the quadratic formula.
a = 1; b = -4; c = -38
or
Answer:
The one on the top left
Step-by-step explanation:
An exponential function is a function that exponentially grows, so multiplication must be involved. In this case, the option on the top left has a pattern of taking the previous term and multiplying it by 2. The two on the right aren't close to growing exponentially. That leaves us with the one on the bottom left. We see the graph is declining, and the previous term is being divided by 3. HOWEVER, the exponent (number you multiply the previous terms by) is less than 1, and that brakes a rule, so it can't be that one.
Hope this helps.