Algebra I STAAR Review

What is the formula to find the slope of a line given two points on the line (x1, y1) and (x2, y2)?

• m = (y2 + y1) / (x2 - x1)

• m = (y2 - y1) / (x2 + x1)

• m = (y2 - y1) / (x2 - x1)

• m = (y2 * y1) / (x2 - x1)

Tags

CCSS.HSS.ID.C.7

Which of the following represents the Pythagorean theorem?

• a^2 - b^2 = c^2

• a^2 + b^2 = c^2

• a^2 * b^2 = c^2

• a^2 / b^2 = c^2

Tags

CCSS.HSG.SRT.B.4

CCSS.HSG.SRT.C.8

What is the quadratic formula used to solve ax^2 + bx + c = 0?

• x = -b ± √(b^2 + 4ac) / 2a

• x = -b ± √(b^2 - 4ac) / 2a

• x = b ± √(b^2 - 4ac) / 2a

• x = b ± √(b^2 + 4ac) / 2a

Tags

CCSS.HSA.REI.B.4

What is the slope-intercept form of a linear equation?

• y = mx + c

• y = mx - b

• y = mx + b

• y = b - mx

Tags

CCSS.HSS.ID.C.7

How is the point-slope form of a linear equation written?

• y - y1 = m(x + x1)

• y + y1 = m(x - x1)

• y - y1 = m(x - x1)

• y + y1 = m(x + x1)

What is the standard form of a linear equation?

• Ax + By + C = 0

• Ax + By = C

• A + Bx + Cy = 0

• Ax - By = C

Tags

CCSS.HSA.CED.A.2

What is the formula for the circumference of a circle?

• C = πd

• C = 2πr

• C = πr^2

• C = 2r

Tags

CCSS.HSG.GMD.A.1

How do you calculate the area of a rectangle or parallelogram?

• A = ½bh

• A = bh

• A = ½d₁d₂

• A = πr^2

Tags

CCSS.HSG.GPE.B.7

Which formula represents the surface area of a sphere?

• S = 2πrh

• S = πrl + πr^2

• S = 4πr^2

• S = Ph + 2B

What is the formula for the volume of a pyramid or cone?

• V = Bh

• V = ⅓Bh

• V = 4/3πr^3

• V = πr^2h

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.GMD.A.3