Jill earned $40 from a carpool plus $9 per hour (h) babysitting this week. Which of the following expressions best represents Ji
1 answer:
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Answer:
y = 8x+8
Step-by-step explanation:
We can solve for the function by finding the slope of the linear function using two points. Let's use (0,8) and (1,16)
Slope formula is:
Plug in the 2 points:
Simplify: m = 8
So now, for the equation y = mx+b, we have m which is y = 8x+b
Now we need to find b by using another point from this linear function.
We can use the point (2,24).
Plug this point into the equation y = 8x+b
- 24 = 8(2)+b
- 24 = 16 + b
- b = 8
We have now found the equation of the linear function: y = 8x+8
Answer:
Step-by-step explanation:
9x² + 6x – 17 = 0
Apply the quadratic formula
a = 9; b = 6; y = -17
The graph below shows the roots at x₁ =1.081 and x₂ = -1.748.
