Unit 1 Day 2: Graphing/Writing Linear Equations/Inequalities
y≤-2x+4
Write the inequality of the graph.
y≥-2x+4
Write the inequality of the graph.
y≥2x-4
Write the inequality of the graph.
y+3=-1/4(x-4)
Write the point-slope form given: m= -1/4 and (4, -3)
y=2(x+1)
Write the point-slope form given: m= 2 and (-1, 0)
y+6=2/5(x+5)
Write the point-slope form given: m= 2/5 and (-5, -6)
y-6=3(x-1)
Write the point-slope form given: m= 3 and (1, 6)
y+6=4(x+1)
Write the point-slope form given: m= 4 and (-1, -6)
y+3=5(x+2)
Write the point-slope form given: m= 5 and (-2, -3)
y=3x-2
Write the slope-intercept form equation if b = -2 and m = 3
y=-2x+3
Write the slope-intercept form equation if b = 3 and m = -2
No, (2,1) does not satisfy the inequality.
When you graph y > 5x + 2, will you shade on the same said as point (2,1)?
solid
When you graph y ≤ 9x + 11, will the line will be solid or dashed?
Yes, (6,3) satisfies the inequality.
When you graph y>(2/3)x-10, will you shade on the same said as point (6,3)?
not part of the solution
A dashed boundary line means the points on the line are ____
part of the solution
A solid boundary line means the points on the line are ____
(-3,0)
Find the x-intercept: 2x + 3y = -6
(1,0)
Find the x-intercept: 2x + y = 2
(2,0)
Find the x-intercept: 3x - 2y = 6
(6/5,0)
Find the x-intercept: 5x + 2y = 6
(5,0)
Find the x-intercept: 4x + 5y = 20
(0,2)
Find the y-intercept: 2x + y = 2
(0,-3)
Find the y-intercept: 3x - 2y = 6
(0,3)
Find the y-intercept: 5x + 2y = 6
(0,4)
Find the y-intercept: 4x + 5y = 20
flip (reverse)
If you multiply or divide an inequality by a negative number you must ___ the inequality sign.
unshaded
If you pick a test point that makes the inequality false, it should be in which area?
shaded
If you pick a test point that makes the inequality true, it should be in which area?
test a point, or flip an inequality when dividing by a negative.
If you shade the wrong side of the line, you probably forgot to
negative
Is the slope positive or negative?
positive
Is the slope positive or negative?
y=mx+b
Slope-intercept form for equation of a line.
y-intercept (where the line crosses the y-axis)
The b in y=mx+b is the
slope of the line
The m in the y=mx+b is the
y<-2x+4
Write the inequality of the graph.
y<2x-4
Write the inequality of the graph.
y=-2x+3
What is the slope-intercept form equation of the line?
y=-3/2x+3
What is the slope-intercept form equation of the line?
y=-3x
What is the slope-intercept form equation of the line?
y=-x+1
What is the slope-intercept form equation of the line?
y=2x+4
What is the slope-intercept form equation of the line?
y=3x-2
What is the slope-intercept form equation of the line?
y=x+3
What is the slope-intercept form equation of the line?
y=x-5
What is the slope-intercept form equation of the line?
undefined
What is the slope?
zero
What is the slope?
No, (-5,-4) does not satisfy the inequality.
When you graph -6y≤4+2x, will you shade on the same said as point (-5,-4)?
No, (0,3) does not satisfy the inequality.
When you graph 10x+5y>30, will you shade on the same said as point (0,3)?
No, (0,0) does not satisfy the inequality.
When you graph x-y≤9, will you shade on the same said as point (0,0)?
Yes, (0,0) satisfies the inequality.
When you graph y < 5x + 2, will you shade on the same said as point (0,0)?
dashed
When you graph y < 7x - 9, will the line will be solid or dashed?