equation: 2y = 3x + 15
<u>If cross y-axis, the x will be 0</u>
2y = 3(0) + 15
2y = 15
y = 7.5
crosses y-axis at (0, 7.5)
(b)
P(-1,10), Q(3,4)
(i) gradient:
(ii) midpoint:
Answer: Option 'c' is correct.
Step-by-step explanation:
Since we have given that
Sample size = 865 = n
Number of voters favor approval of an issue before the legislature = 408 = x
So,
At 95% confidence level of significance, z = 1.96
So, confidence interval would be
Hence, option 'c' is correct.
The ball describes a parabola, as you can see in the attached picture. So, the point where the ball strike the ground is the point where the parabola meets the x axis. In fact, the x-axis is the set of points where y=0, which means that the ball has height 0 or -again- it hits the ground.
So, we have to set y=0 in our equation and look for the positive solution. We have
And the positive solution is
So that's the distance from the child where the ball strikes the ground.
if you do a number line it = 39