Day 4 Graphing Linear Forms

What is the formula for standard form?

• y=mx+b
• y-y₁=m(x-x₁)
• Ax+By=C
• rise÷run

Which equation is written in STANDARD form?

• y = 1/2x + 2
• y - 3 = -5(x + 2)
• -7x + 2y = 9
• 3x + 2 = y

What is the y-intercept of the line graphed below?

• (-3, 0)

• (0, 4)

• (0, -3)

• (4, 0)

What is the y-intercept of
2x-5y=35?

• (0,-7)
• (-7,0)
• (35/2, 0)
• (0,35/2)

What is the slope of

-6x-2y=9?

• 9/2

• 9

• -3

• -6

Are these two lines parallel, perpendicular or neither?
y = -1/3x - 5
y = 1/3x + 2

• Parallel
• Perpendicular
• Neither

Tags

CCSS.8.EE.B.6

Write an equation in point slope form of equation of line

point (7,10) and has a slope of -2?

• y-10 = -2(x+7)

• y-10 = -2(x-7)

• y+10 = -2(x+10)

• y -10 = -2x+2

For the equation
y - 3 = 2(x + 4),
the line has a slope of 2 and contains what point?

• (-4, 3)
• (3, -4)
• (-3, -4)
• (-4, -3)

Write the equation in point-slope form of the line that passes through the given point and has the given slope.
(4, -7); m = -1/4

• y + 7 = -1/4(x - 4)
• y - 4 = -1/4(x + 7)
• y + 7 = 4(x - 4)
• y - 7 = -1/4(x - 4)

Are the following equations parallel or not? HINT: Solve the second equation for y so that it is in y=mx + b form. y = 2x - 5 and 4x + 2y = 10

• Yes, they are parallel
• No, they are not parallel