Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

The equations are graphed in the xyxy-plane. Which equation's graph will have a slope of 78\frac{7}{8} and a yy intercept of 33 ?\newlineChoose 11 answer:\newline(A) 7x+8y=247x+8y=24\newline(B) 7x8y=247x-8y=-24\newline(C) 8x+7y=38x+7y=3\newline(D) 7x8y=37x-8y=3

Full solution

Q. The equations are graphed in the xyxy-plane. Which equation's graph will have a slope of 78\frac{7}{8} and a yy intercept of 33 ?\newlineChoose 11 answer:\newline(A) 7x+8y=247x+8y=24\newline(B) 7x8y=247x-8y=-24\newline(C) 8x+7y=38x+7y=3\newline(D) 7x8y=37x-8y=3
  1. Understanding slope-intercept form: Understand the slope-intercept form of a linear equation. The slope-intercept form of a linear equation is y=mx+by = mx + b, where mm is the slope and bb is the y-intercept. We are looking for an equation with a slope of 78\frac{7}{8} and a y-intercept of 33.
  2. Converting equation (A) to slope-intercept form: Convert the given equations to slope-intercept form to identify the slope and y-intercept.\newlineWe will start with option (A) 7x+8y=247x + 8y = 24 and rearrange it to solve for yy.\newlineSubtract 7x7x from both sides to get 8y=7x+248y = -7x + 24.\newlineThen divide by 88 to isolate yy, yielding y=(78)x+3y = (-\frac{7}{8})x + 3.
  3. Checking slope and y-intercept for equation (A): Check if the slope and y-intercept from Step 22 match the required values.\newlineThe slope from equation (A) is 78-\frac{7}{8}, and the y-intercept is 33. The slope does not match the required slope of 78\frac{7}{8}, so option (A) is not the correct answer.
  4. Converting equation (B) to slope-intercept form: Repeat Step 22 for option (B) 7x8y=247x - 8y = -24. Subtract 7x7x from both sides to get 8y=7x24-8y = -7x - 24. Then divide by 8-8 to isolate yy, yielding y=78x+3y = \frac{7}{8}x + 3.
  5. Checking slope and y-intercept for equation (B): Check if the slope and y-intercept from Step 44 match the required values.\newlineThe slope from equation (B) is 78\frac{7}{8}, and the y-intercept is 33. Both the slope and y-intercept match the required values, so option (B) is the correct answer.