Unit 1 Day 2: Graphing/Writing Linear Equations/Inequalities

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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