Question

question 8 (multiple choice worth 2 points)
(distance on the coordinate plane lc)
what is the distance from (-18, -5) to (-18, 24)?
○ -29 units
○ -19 units
○ 19 units
○ 29 units

question 9 (multiple choice worth 2 points)
(histograms and line plots mc)
a group of students was asked about the number of times they had been water-skiing. the data is shown in the water skiing trips histogram

Explanation:

Question 8

Step1: Identify the type of line

The two points \((-18, -5)\) and \((-18, 24)\) have the same \(x\)-coordinate, so they lie on a vertical line.

Step2: Calculate the distance

For a vertical line, the distance is the absolute difference of the \(y\)-coordinates. So, distance \(= |24 - (-5)| = |24 + 5| = |29| = 29\) units.

To solve, we would analyze the histogram's bars (frequency on y - axis, number of trips on x - axis). Sum frequencies or find measures (like mode, median) based on the bar heights. But with incomplete data, we can't compute. If we assume the question is about total students, sum the frequencies of each bar. For example, if bars have heights 1, 2, 5, 4, 2 (from visible parts), total is \(1 + 2+5 + 4+2=14\) (but this is speculative without full data).

Answer:

D. 29 units

Question 9

(Note: Since the histogram data is not fully visible (the x - axis labels or the complete graph is missing), we can't provide a full solution. But if we assume a typical histogram problem about interpreting frequency: )