Answer:
4x+y=21, 4x+3y=5, -4x+3y=17
Step-by-step explanation:
Graph y=x+3. y = x + 3 y = x + 3. Use the slope-intercept form to find the slope and y-intercept. Tap for more steps... The slope-intercept form is y = m x + b y = m x + b, where m m is the slope and b b is the y-intercept. y = m x + b y = m x + b.
